Genesis GD38B Manual Del Operario página 10

APPLICATIOn
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tool. The tool must be set for forward or clockwise rotation only. Failure to obey
this caution may cause property damage.
DRILLING IN WOOD, COMPOSITE MATERIALS AND PLASTICS
Although most "twist" drill bits are designed for drilling into metal, they are the most common bit used
for boring holes in wood, wood composites and plastics. There are many types of drill bits available that
may be more appropriate or designed specifically for boring the type of hole you desire. Additional drill
bits to choose from include: spade bits, brad bits, self-feed bits, hole saws, circle cutters, multispur bits
and forstner bits, to name just a few! Woodworking publications and tool supply store personnel are
good sources to help you select the drill bit that best satisfies your needs.
With the tool unplugged from its power source
• Install the appropriate bit into the chuck and tighten the chuck.
• Place the forward/reverse switch in the forward position.
• Mark the location(s) on the workpiece where the holes are to be drilled.
• Secure the workpiece with clamps or other means.
• Wear safety goggles or safety glasses with side shields. Wear a dust mask or respirator to prevent
inhalation of wood dust.
To drill the hole
• Plug the tool into the power source.
• Place tip of the drill bit on the workpiece where the hole is being drilled.
• Apply downward pressure and slowly depress the switch trigger.
• When using a twist drill, withdraw the bit from the hole frequently to clear built up wood chips from
the flutes. Clearing the flutes avoids overheating the bit and burning the wood.
• When drilling plastics use slower speeds to avoid melting the material.
• Reduce pressure on the drill just before the bit breaks through the workpiece to avoid splintering
the wood. (Note: Clamping a backing block to the workpiece will keep the back of the wood from
splintering. If not using a backing block when using spade bits and hole saws, reduce pressure as
soon as the bit point breaks through the workpiece and complete drilling the hole from the opposite
side.)
DRILLING IN METAL
Important note: use good quality high-speed steel twist drill bits.
• With the drill unplugged, install the bit and perform the pre-drilling checks as stated in the
preceding wood drilling section.
• To make starting the hole easier and keep the bit from "walking" on the workpiece, use a center
punch to make a small impression in the metal. Place the drill bit tip into the impression and start
the drill by slowly depressing the switch trigger. Apply only enough pressure to keep the bit cutting
into the metal.
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bits to break, resulting in bodily injury. Excessive pressure will cause bits to
overheat, damaging the drill bit. Too little pressure keeps the bit from cutting,
dulling the bit edges due to excessive friction.
• If drilling large holes, first drill a smaller hole and then enlarge it to the desired size.
• using lubricants such as oil on the point will help cool the bit, increase drilling action and extend
drill bit life.
10
Always check the direction of rotation before operating the
DO nOT FORCE the tool. Too much pressure may cause
3/8" VSR Electric Drill
Operator's Manual GD38B