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kobalttools.com
OPERATING INSTRUCTIONS
h. To stop the drill/driver, release the trigger switch and allow the tool to come to a complete stop.
The electric brake quickly stops the rotation. This feature engages automatically when you release
the trigger switch.
NOTICE:
This drill/driver is equipped with an electric brake. When the brake is functioning properly,
sparks may be visible through the vent slots in the housing. This is normal and is the action of the brake.
Wood Drilling
a. For maximum performance, use high-speed steel or brad-point bits for drilling wood.
b. Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
c. Increase speed as the drill bit bites into the material.
d. When drilling “through” holes, place a block of wood behind the workpiece to prevent ragged or
splintered edges on the back side of the hole.
Metal Drilling
a. For maximum performance, use high-speed steel bits for drilling metal or steel.
b. When drilling metals, use light oil on the drill bit to keep it from overheating. The oil will prolong the
life of the bit and increase the drilling action.
c. Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
d. Maintain a speed and pressure which will allow cutting without overheating the bit. Applying too
much pressure will:
— Overheat the drill/driver.
— Wear the bearings.
— Bend or burn bits.
— Produce off-center or irregular-shaped holes.
Masonry Drilling
a. For maximum performance, use carbide-tipped masonry bits when drilling holes in brick, tile,
concrete, etc.
b. Maintain a speed and pressure which will allow cutting without overheating the bit or drill/driver.
Applying too much pressure will:
— Overheat the drill/driver.
— Wear the bearings.
— Bend or burn bits.
— Produce off-center or irregular-shaped holes.
c. Apply light pressure and medium speed for best results in brick.
d. Apply additional pressure for hard materials, such as concrete.
e. When drilling holes in tile, practice on a scrap piece to determine the best speed and pressure.
f. Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
