Use and Care Manual

Driving with variable speed

Variable speed drills will double as a power screwdriver by using a screwdriver bit in the drill mode. The

technique is to start slowly, increasing the speed as the screw runs down. Set the screw snugly by slowing

to a stop. Prior to driving screws, pilot and clearance holes should be drilled.

WARRNING: Make sure that the driver bit is inserted straight in the screw head, or the

screw and / or bit may be damaged.

Fastening with screws

This procedure shown in (Fig.4) will enable you to fasten materials together with your cordless drill

without stripping, splitting or separating the

material.

• First, clamp the pieces together and drill the first

hole 2/3 the diameter of the screw. If the

material is soft, drill only 2/3 the proper length.

If it is hard, drill the entire length.

• Second, unclamp the pieces and drill the second

hole the same diameter as the screw shank in

the

first or top piece of wood. Third, if flat head

screw is used, countersink the hole to make the

screw flush with the surface.

• Then, simply apply even pressure when driving

the screw. The screw shank clearance hole in

the

first piece allows the screw head to pull the

pieces tightly together. The adjustable screw

drill accessory will do all of these operations

quickly and easily.

DRILLING OPERATION

Drill bits

Always inspect drill bits for excessive wear. Use only bits that are sharp and in good condition.

TWIST BITS: Available with straight and reduced shanks for wood and light duty metal

drilling. High speed bits cut faster and last longer on hard materials.

Drilling wood

Be certain workpiece is clamped or anchored firmly. Always apply pressure in a straight line

with the drill bit. Maintain enough pressure to keep the drill “biting”. When drilling holes in wood, twist

bits can be used. Twist bits may overheat unless pulled out frequently to clear chips from flutes. Use a

“back-up” block of wood for work that is likely to splinter, such as thin materials. You will drill a cleaner

hole if you ease up on the pressure just before the bit breaks through the wood. Then complete the hole

from the back side.

Fig.4