www.tecnoficio.com

 

 

 

 

 

 

 


Vocabulario técnico Inglés-Español - www.sapiensman.com

Neumática e Hidráulica

Electrotecnia

Documentos Técnicos


 


Tecnoficio Store Online

Words & Products

Sapienstrade Shopping Mall


 


 

 

 

 

 

 

 

 

Oficios Técnicos

www.tecnoficio.com

Información para el estudiante y el trabajador de oficios técnicos.


 

Búsqueda personalizada

PORTABLE DRILLS : PURPOSE AND TYPES

The portable drill is a hand-supported, power-driven machine tool that rotates twist drills, reamers, counterbores, and similar cutting tools. The portable drill may be electrically powered by means of an internal electric motor (Figure 1) or may be pneumatically powered (Figure 2). Portable drills are rated by the maximum size hole that can be drilled in steel without overtaxing the motor or drill.

 

TALADROS PORTÁTILES : PROPÓSITO Y TIPOS

El taladro portátil es una máquina herramienta de soporte manual, accionada por motor que hace girar brocas helicoidales, escariadores, avellanadoras, y herramientas de corte similares. El taladro portátil se puede accionar eléctricamente por medio de un motor eléctrico interno (figura 1) o puede ser accionado neumáticamente (figura-2). Los taladros portátiles son clasificados por el tamaño máximo del agujero que puede ser perforado en el acero sin una exigencia excesiva del motor o de la mecha.

Fig. 1- Portable electric hand drills - Taladros manuales portátiles eléctricos

Fig. 2 - Portable pneumatic hand drills - Taladros manuales portátiles neumáticos

 

« Previous 1 2 3 4 5 Next »
Cooper Tools Apex #2 Phillips Insert

Cooper Tools Apex #2 Phillips Insert

$3.99

Drive size: 1/4 inch Drive type: Hex Tip size symbol: #2 Tip type: Phillips Overall length: 1 inch Hardness grade: Hardest heat treat available Locking type: Spring Material: Tool steel [Read more]

Brand: Cooper Tools Apex

Cooper Hand Tools Weller 40-watt Lighted Marksman Solder Iron

Cooper Hand Tools Weller 40-watt Lighted Marksman Solder Iron

$22.14  $21.03

The Marksman solder iron from Cooper Hand Tools features a urable nickel over copper tip finish. This soldering iron also offers a chisel-style tip and is light for convenience. Operating tempature: 900 Fahrenheit Voltage: 120 volts alternative current Power consumption: 40 watts Tip type: Chisel Tip size: 0.25 inches Tip material: Copper Tip finish: Nickel Length:8.25 inches Body Material: Stainless steel [Read more]

Brand: Cooper Hand Tools Weller

Buffalo Tools 42-piece Rotary Tool Kit

Buffalo Tools 42-piece Rotary Tool Kit

$40.38  $30.74

This rotary tool kit includes a rotary tool, a 42-inch flexible shaft and 40 popular accessories. Use this rotary tool for projects needing shaping, grinding and polishing projects around the house. Brand: Buffalo Tools Materials: Hard plastic Color: Grey Size: Hand held Includes: One (1) rotary tool, one (1) 42-inch flexible shaft, 40 popular accessories Compact lightweight design Variable speeds of 8,000 to 30,000 RPM Able to use compatible router bits Durable Double-insulated Impact-resistant housing accepts accessories with up to a 1/8-inch shank Intended use: Shaping, grinding and polishing small projects around the house Dimensions: 17.5 inches long x 13 inches wide x 8.25 inches high Model: PS07425 [Read more]

Brand: Buffalo Tools

DeWalt 6-Inch Bi-Metal Recipricating Saw Blades

DeWalt 6-Inch Bi-Metal Recipricating Saw Blades

$13.49

Blade Type: Straight Back Length: 6 in Teeth Per Inch: 18 Quantity: 5 blades (1 package) Weight: 0.22 pounds [Read more]

Brand: Dewalt

WEN Apex 10-inch Table Saw with Stand

WEN Apex 10-inch Table Saw with Stand

$189.99  $185.49

The Apex Pro 10-Inch Table Saw is a sturdy lightweight machine that is ideal for any home or workshop. It features a 20-Inch by 26-Inch cast Aluminum table for large cuts and a front and rear locking rip fence for accuracy. The rigid Steel stand provides stability and reduces vibration. Powerful 15-Amp Motor No load speed: 5000 RPM 20-Inch by 26-Inch large cast Aluminum table provides Ample space for large rip cuts Steel stand with rigid, stable construction for less vibration Includes, Miter saw, Stand, 10-Inch Carbide Tipped Blade, Miter Gauge, Rip Fence, Dado Blade Insert, Push Stick, Blade Guard and Instruction Manual Dimensions: 15 inches high x 29.5 inches long x 23 inches wide Materials: Metal, plastic Model No: 3710 Color: Black and green Size: 10-inch [Read more]

Brand: Great Lakes Technologies

Irwin Unibit 13 1.125-inch Step Drill

Irwin Unibit 13 1.125-inch Step Drill

$81.03  $50.97

Cutting diameter: 1.125 inches Cutting edge material: HSS Measurement type: Fractional Packing type: Carded Shank diameter: .5-inches Weight: 0.48 pounds [Read more]

Brand: Irwin Unibit

Anchor Brand Crimped Cup Brushes

Anchor Brand Crimped Cup Brushes

$35.39  $13.99

Wire Material: Carbon Steel Diameter: 4 inches Wire Size: 0.014 inches Arbor Thread TPI or Pitch: 5/8-11 inches Structure: Crimped Weight: 1.34 pounds [Read more]

Brand: Anchor Brand

Anchor Brand 4-inch Stringer Bead Wheel Brush

Anchor Brand 4-inch Stringer Bead Wheel Brush

$25.10  $17.69

Wire material: Carbon steel Diameter: 4 inches Wire Size: 0.02 inches Arbor Thread - TPI or pitch: 5/8 inches - 11 Structure: String bead wire Packing Type: Clamshell Weight: .43 pounds Model: 102-R4S58 [Read more]

Brand: Anchor Brand

Stalwart Loaded 31-piece Hole Saw and Drill Bit Kit

Stalwart Loaded 31-piece Hole Saw and Drill Bit Kit

$47.00  $37.46

Trademark Tools loaded 31 piece hole saw and drill bit kit is a must have for a tool collection. This 31 piece saw and drill bit set covers 1/8 of an inch all the way up to 5 inches and everything in between. Heat treated carbon steel, cut perfect circles with these tools, one Hex key wrench and one installation plate Saw sizes: 11/16 inch, 15/16 inch, 2 and 5/16 inch, 3/4-inch, 1 and 1/8 inch, 1 and 3/4 inch, 2 inches, 2.5 inches, 2 and 3/4 inch, 3 inches, 3.5 inches, 4 inches, 5 inches Comes in new molded case, six mandrel bits, four flat wood bits, four Forstner bits Brand: Trademark Tools Type: Hole saw and drill bit kit Materials: Metal and plastic Dimensions: 8.25 inches wide x 9 inches high x 2.25 inches deep Model: 75-3131 [Read more]

Brand: Trademark Global

DeWalt 3/8-Inch Socket Adapter

DeWalt 3/8-Inch Socket Adapter

$14.09  $4.99

Tool: Socket adapter Diameter: 3/8 (0.375) inches Materials: Metal [Read more]

Brand: Dewalt

Trulock 6-Inch Narrow-Face Crimped Wire Wheel

Trulock 6-Inch Narrow-Face Crimped Wire Wheel

$28.63  $21.49

Wire Material: Stainless Steel Diameter:6 inches Wire Size: 0.0140 in Arbor Thread - TPI or Pitch:5 /8 - 1/2 inch Face Width: 3/4 inch Face Plate Thickness: 7/16 inch Trim Length: 1 7/16 inch Speed: 6000 rpm [Max] Applications: Cleaning rust, scale and dirt, Light Deburring, Edge Blending, Roughening for adhesion, Finish preparation prior to plating or painting Used With: Straight Grinders, Bench/Pedestal Grinders, Right Angle Grinders [Read more]

Brand: Weiler

Champion 12000-pound Heavy Duty Winch

Champion 12000-pound Heavy Duty Winch

$449.99

This tough Champion towing winch features a sturdy, durable construction with a series-wound motor for heavy duty winching, superior line pulls and speed, high gear reductions ratios for efficiency, and a 12,000-pound pull capacity. Includes: Winch, power in/ out controller, 6-foot battery power lead, clevis hook, and owner's manual Brand: Champion Power Equipment Type: Universal Hand/automatic: Automatic Materials: Steel Color: black/ yellow Corrosion resistant: Yes Rope/straps included: Yes Braking: Automatic Mounting hardware not included Weight maximum: 83.7 pounds Model: 11200 Dimensions: 10.2 inches high x 6.2 inches wide x 21.9 inches long Specifications: Rated line pulls: 12,000 pounds Gear reduction ratio 196:1 6 HP, 4.5 kw series wound motor (12V DC) 85 feet x .375-inch galvanized, super-duty aircraft cable Recommended battery: 650 CCA minimum for winching [Read more]

Brand: Champion Power Equipment

Crimped Wire Solid End Brush

Crimped Wire Solid End Brush

$26.31  $12.34

Materials: Stainless Steel Diameter: One (1) inch Wire size: 0.0104 inches Stem diameter: 0.25 inches Trim length: One (1) inch Speed: 22000 rpm Used with: Power drills [Read more]

Brand: Weiler

10 to14 Gallon Drywall Filter Bags (Pack of 2)

10 to14 Gallon Drywall Filter Bags (Pack of 2)

$22.98

Specially designed for pick-up of fine dust like drywall and cement dust or cold ashes, these high quality, disposable filter bags come in packages of two and fit 10-14 gallon vacs. Two pack Fits 10-14 gallon tanks Materials: Fabric Dimensions: 15.7 inches x 8.1 inches x 2.2 inches Weight: 0.6 pounds Model: 9067200 [Read more]

Brand: Shop Vac

TG Tools KIK HS Brad Point 11-piece Drill Bit Set

TG Tools KIK HS Brad Point 11-piece Drill Bit Set

$34.03  $28.49

KIK drill bits come in a set of 11 for your convenience These Brad Point drill bits have universal 'Quick Change' shanks for use with your drill Always have the tool for the job with a new case of drill bits Bits are housed in the free Auto Hinge Lock Case (patent pending) When closed, the case retains the drills, no matter what position When opened, the auto hinge lock presents the drills at the chosen angle, ready for easy selection and return The shanks are universal 'Quick Change' and mount firmly in a conventional chuck Six cutting edges for smoother, faster boring in wood 20-percent more cutting edge means longer life Drills aluminum and metal sheets cleanly with less heat, small chips, and no clogging Nearly flat bottom blind holes Will not 'walk' on smooth surfaces Drills plastic cleanly without melting Set includes Two 1/4-inch KIK HS bits Two 1/8-inch KIK HS bits One 3/8-inch KIK HS bit One 11/32-inch KIK HS bit One 5/16-inch KIK HS bit One 9/32-inch KIK HS bit One 7/32-inch KIK HS bit One 3/16-inch KIK HS bit One 5/32-inch KIK HS bit [Read more]

Brand: TG Tools United Co.

Buffalo Tools 10-inch Diamond Blade

Buffalo Tools 10-inch Diamond Blade

$25.99

Get the perfect cut every time with this diamond saw blade. This saw blade is 10-inches in diameter and features diamond-shaped edges for consistent cutting and sawing. Item: Saw blade Intended use: Cutting and saw metal, wood Dimensions: 10 inches in diameter Materials: Metal Model: SBDCM10 [Read more]

Brand: Buffalo Tools

Trulock 8-Inch Narrow-Face Crimped Wire Wheel

Trulock 8-Inch Narrow-Face Crimped Wire Wheel

$34.33  $21.03

Wire Material:S teel Diameter: 8 inches Wire Size: 0.0140 inch Arbor Diameter: 5/8 inch Face Width: 3/4 inch Face Plate Thickness: 1/2 inch Trim Length: 2 1/16 inch Speed: 6000 rpm [Max] Applications: Cleaning rust, scale and dirt, light deburring, edge blending, roughening for adhesion, finish preparation prior to plating or painting Used With: Straight Grinders, Bench/Pedestal Grinders, Right Angle Grinders [Read more]

Brand: Weiler

Dualife Stringer Bead Twist Knot Wire Wheel

Dualife Stringer Bead Twist Knot Wire Wheel

$47.23  $18.53

Materials: Stainless Steel Diameter: Six (6) inches Wire size: 0.0230 inches Face width: 0.5 inches Trim length: 1.375 inches [Read more]

Brand: Weiler

« Previous 1 2 3 4 5 Next »

Therefore, a 1/4-inch-capacity drill is capable of drilling a 1/4-inch diameter hole or smaller in steel. Portable electric and pneumatic drills rated at 1/4 to 1/2-inch maximum capacities are usually equipped with geared drill chucks for mounting straight, round shank twist drills or other similar tools by using a chuck key (Figure 3). Heavier portable drills (Figure 4) having a 3/4- to 1 1/4-inch capacity use taper shank chucks to mount drills and other similar tools.

Fig. 3 - Geared drill chuck and chuck key. - Cabezal portabroca o mandril dentado y llave de ajuste de mandril.

Portable drills have many different characteristics (Figure 5) depending on how the job is to be done. They may be set for one speed or they maybe variable speed drills. A variable speed drill is an excellent tool for use as a power screwdriver.

Portable drills may be equipped with a reversing switch to allow a screwdriver attachment to reverse bolts and screws out of holes. Special 90° angle portable drills (Figure 8) are available for drilling in confined spaces where a standard size drill will not have sufficient clearance. For corners and tight spots, a 360° angle portable pneumatic drill (Figure 2) is available which can be swiveled to any desired angle and locked into position. Most portable drills have a lock button near the on-off switch which allows for continuous operation without holding the trigger. Side handles and rear spade handles (Figure 5) can be attached to most drills to stabilize drilling and to allow for better control. Special devices, such as a vertical stand (Figure 6) or feed screw (Figure 7), can be used on some of the portable drills to make a job easier or more proficient.

Fig. 5 - Common portable drill - Taladro portátil común

The size, type, and power capacity of portable drills selected depends on the job to be performed. Before attempting a drilling job, check the capabilities of the portable drill with the manufacturer's instruction manual .

Fig. 7 - Operation of the portable drill showing the use of the feed screw - Operación del taladro portátil mostrando el uso del tornillo de accionamiento de avance

Por lo tanto, un taladro ¼ pulgadas de capacidad es capaz de perforar un agujero de ¼ pulgada de diámetro o más pequeño en acero. Los taladros eléctricos y neumáticos portátiles clasificados en ¼ a ½ de pulgada de capacidades máximas son generalmente equipados con manguitos porta broca dentados para el montaje de brocas rectas, de espiga redonda u otras herramientas similares usando una llave de mandril (figura 3). Taladros portátiles más pesados (figura 4) que tienen capacidades de ¾ - a 1 ¼ pulgadas usan espiga de forma cónica para montar las brocas y otras herramientas similares.

Fig. 4 - 1 inch capacity portable electric drill - Taladro eléctrico portátil de 1 pulgada de capacidad.

Los taladros portátiles tienen diversas características (figura 5) dependiendo de cómo debe ser hecho el trabajo. Pueden ser ajustados para una velocidad o pueden ser taladros de velocidad variable. Un taladro de velocidad variable es una herramienta excelente para su uso como destornillador eléctrico.

Los taladros portátiles se pueden equipar con un interruptor de inversión para permitir que un accesorio del destornillador destornille pernos y tornillos de los agujeros. Taladros portátiles especiales de 90° de ángulo (figura 8) están disponibles para perforar dentro de espacios confinados donde un taladro de tamaño estándar no tendrá suficiente espacio. Para las esquinas y puntos con poco margen, un taladro neumático portátil de 360° de ángulo (figura 2) está disponible para que se pueda hacer girar sobre un eje a cualquier ángulo deseado y ser trabado en una posición. La mayoría de los taladros portátiles tienen un botón de traba cerca del interruptor de encendido-apagado que permite una operación continua sin accionar el disparador. Los mangos laterales y mangos posteriores tipo espada (figura 5) se pueden fijar a la mayoría de los taladros para estabilizar la perforación y para disponer de un mejor control. Los dispositivos especiales, tales como el soporte vertical (figura 6) o eje de avance (cuadro 7), se pueden utilizar en algunos de los taladros portátiles para hacer un trabajo más fácil o más eficiente.

Fig. 6 - Portable electric drill with vertical stand - Taladro eléctrico portátil con soporte vertical

El tamaño, el tipo, y la capacidad eléctrica de los taladros portátiles seleccionados dependen del trabajo a ser realizado. Antes de intentar un trabajo de perforación, compruebe las capacidades del taladro portátil con el manual de instrucciones del fabricante.

Fig. - Hand drilling operation in confined space using the 90° angle drill - Operación de taladrado manual en espacios estrechos usando el taladro angular de 90°

   

DRILLING OPERATIONS

Operation of the portable electric and pneumatic drills differs from recommended operating procedures for the upright drilling machine. The portable drill is hand supported for most operations, and the cutting speed of the drill is fixed or dependent upon the operator to control. When hand supported, the drill must be carefully aligned with the workpiece (Figure 9) and this alignment must be maintained throughout the drilling operation. Care must be taken not to lose control of the portable drill and allow it to be wrenched from the operator's hands. The larger portable drills (Figure 10) can be very dangerous if not held firmly by the operator.

Fig. 9 - Drilling with portable drill - Perforando con taladro portátil

If the cutting speed is fixed, the operator must learn to control the feed of the portable drill by applying sufficient pressure for the drill to cut, but not too much pressure as to cause overheating of the twist drill or stalling of the portable drill motor.

When metal is to be drilled with the portable drill, the workpiece must be prepared by locating the center position of the potential hole and marking the location with a center punch. When a large drill is to be used, it will be necessary first to drill a pilot hole slightly larger in diameter than the thickness of the larger drill's web, which will allow for the drag caused by the larger drill's chisel edge (Figure 11).

Fig. 11 - Drilling a pilot hole for a larger drill - Perforando un agujero piloto para una mecha mas grande.

Portable pneumatic drills require special attention to lubricate their internal moving parts. Each drill may be made slightly different, so refer to the pertinent lubrication order or manufacturer's instruction manual before drilling.

For drilling by hand, the workpiece must be mounted securely. Thin workpieces should be backed up with a thicker piece of wood or metal to prevent the drill from snagging in the workpiece. Do not attempt to hold any workpiece by hand or serious injury could result.

Select a twist drill of the proper size for the hole to be drilled. Ensure that the twist drill selected has the right type of shank for the type of chuck mounted on the portable drill.

Taper shank drills cannot be mounted in a drill with a geared chuck. Check each twist drill for sharp cutting edges prior to use.

After securing the twist drill in the proper chuck, connect the portable drill to its power source. Position the portable drill perpendicular to the workpiece and center the chisel point of the drill in the center-punched hole of the workpiece.

Apply firm but not too heavy pressure upon the portable drill, pull the trigger or throttle button to start the drill.

Apply a few drops of cutting oil to the twist drill and hole (Figure 3-12) to improve the cutting action and prevent overheating of the twist drill. For long drilling operations, stop the drill and allow it to cool; then apply additional cutting oil to the drilling area. The lock button can be engaged for lengthy cutting operations.

Continue drilling the hole while applying enough pressure to produce a clean chip, but not so much pressure as to cause the motor to strain or the drill to bind. The drill must be held firmly at all times to prevent the drill from being wrenched from the hands of the operator if the flutes of the drill should snag on a metal burr in the hole.

As the twist drill nears the back wall of the workpiece, release the lock button so that the drill can be stopped immediately if required. Decrease the feed pressure as the drill breaks through, and cautiously feed the drill through the wall of the workpiece. If the drill should snag on a burr, stop drilling immediately and withdraw from the hole. Carefully feed the drill back into the hole while the drill is turning to cut through the burr.

When a portable drill is mounted to a vertical stand, the operating procedure is identical to that used for the upright drilling machine. Use the lock button while drilling and use the hand lever to drill to the required depth.

Portable drilling operations can be difficult to an inexperienced operator. It is difficult to keep the twist drill perpendicular to the workpiece during drilling, and it is hard to drill to a desired depth accurately. If help is available, use the buddy system to keep the drill aligned while drilling. To drill to depth, mark the twist drill with a light colored marking pen or a strip of tape and keep a close watch on the drill as it cuts. Another way to drill to depth accurately using the portable drill is to use a jig, such as a piece of metal pipe or tubing cut to length, to indicate when the drill has reached the desired depth.

Fig. 12 - Drilling lubrication, correct and incorrect - Lubricación de perforación, correcta e incorrecta.

OPERACIONES DE PERFORACIÓN

La operación de los taladros eléctricos y neumáticos portátiles difiere de los procedimientos de funcionamiento recomendados para una perforadora vertical. El taladro portátil es soportado a mano para la mayoría de las operaciones, y la velocidad de corte del taladro es fija o dependiente del control del operador. Cuando se soporta a mano, el taladro debe alinearse cuidadosamente con la pieza de trabajo (figura 9) y esta alineación debe mantenerse a lo largo de la operación de perforación. Se debe tener cuidado de no perder el control del taladro portátil para no permitir que se tuerza en las manos del operador. Los taladros portátiles más grandes (figra 10) pueden ser muy peligrosos si no se sostienen firmemente por el operador.

Fig. 10 - Drilling with a large portable drill - Perforando con un taladro de gran tamaño

Si la velocidad del corte es fija, el operador debe aprender a controlar la alimentación del taladro portátil aplicando la suficiente presión para que el taladro corte, pero no demasiada presión que cause un recalentamiento del taladro de mecha helicoidal o el atasco del motor portátil del taladro.

Cuando el metal debe ser perforado con el taladro portátil, la pieza de trabajo debe ser preparada ubicando la posición central del agujero en cuestión y marcando la localización con un punzón central. Cuando un taladro grande debe ser utilizado, será necesario primero perforar un agujero piloto levemente más grande en diámetro que el grueso del filo de mecha más grande, que permitirá que se produzca la fricción causada por el borde biselado de la broca más grande (figura 11).

Los taladros neumáticos portátiles requieren especial atención para lubricar sus piezas móviles internas. Cada taladro puede hacerse ligeramente diferente, por lo tanto refiérase a la orden correspondiente de instrucciones o al manual de lubricación del fabricante antes de perforar.

Para perforar a mano, el objeto se debe montar con seguridad. Las piezas de trabajo finas se deben sostener con un pedazo más grueso de madera o de metal para evitar el desrebabado de taladro en el objeto. No intente sostener ningún objeto a mano o una lesión seria podría resultar.

Seleccione un taladro de broca helicoidal del tamaño apropiado para que el agujero sea perforado. Asegúrese de que el taladro seleccionado tenga el tipo correcto de espiga para el tipo de mandril montado en el taladro portátil.

Los taladros de espiga de forma cónica no se pueden montar en un taladro con un mandril de engranajes. Compruebe el filo de cada mecha helicoidal antes de su uso.

Después de asegurar la mecha helicoidal adentro del mandril apropiado, conecte el taladro portátil a su fuente de energía. Coloque el taladro portátil perpendicular al objeto de trabajo y centre el punto biselado de la mecha en el agujero de centrado perforado en el objeto. Aplique una presión firme pero no excesiva sobre el taladro portátil, tire del botón del disparador o del botón de traba para encender el taladro.

Aplique algunas gotas de lubricante para cuchillas a la mecha helicoidal y al agujero (figura 3-12) para mejorar la acción de corte y para prevenir el recalentamiento de la mecha. Para las operaciones largas de perforación, pare el taladro y permita que se enfríe; luego aplique lubricante para cuchillas adicional al área de la perforación. El botón de bloqueo se puede accionar para operaciones muy largas de corte.

Continúe perforando el agujero mientras que aplica bastante presión para producir una viruta limpia, pero no tanta presión para hacer que el motor se sobrecargue o que la mecha se doble. El taladro se debe mantener firmemente siempre, para evitar que el mismo se desprenda de las manos del operador si las ranuras de la mecha se encastraran en las rebabas del metal en el agujero.

A medida que la mecha helicoidal se acerca a la pared trasera del objeto de trabajo, libere el botón de bloqueo para poder parar el taladro inmediatamente si es necesario. Disminuya la presión del proceso de taladrado a medida que la mecha pasa, y accione cautelosamente el taladro a través de la pared del objeto. Si el taladro se encastra en las rebabas, pare el perforar inmediatamente y retírese del agujero. Cuidadosamente inicie el proceso de taladrado nuevamente dentro del agujero mientras que la mecha está girando para cortar a través de las rebabas.

Cuando un taladro portátil se monta sobre un soporte vertical, el procedimiento de funcionamiento es idéntico a aquel usado para la perforadora vertical. Utilice el botón de bloqueo mientras que perfora y utilice la palanca de mano para perforar a la profundidad requerida.

Las operaciones de perforación con taladro portátil pueden ser difíciles para un operador inexperto. Es difícil mantener la mecha helicoidal perpendicular al objeto durante la perforación, y es difícil perforar a una profundidad deseada con precisión. Si la ayuda está disponible, recurra a un ayudante para mantener el taladro alineado mientras se perfora. Para perforar en profundidad, marque la mecha helicoidal con un marcador de color claro o un trozo de cinta y mantenga estrecha vigilancia al taladro a medida que corta. Otra manera de perforar en profundidad con precisión usando un taladro portátil es utilizar una plantilla, tal como un pedazo de cañería o de tubería de metal cortada a medida, para indicar cuando el taladro ha alcanzado la profundidad deseada.

   

 

XML error: Mismatched tag at line 12