Kobalt KHD 124B-03 Manual De Instrucciones página 15

OPERATING INSTRUCTIONS
Drilling Wood
a. For maximum performance, use high-speed steel or brad-point bits for drilling wood.
b. Set the mode selector (C) to drilling mode
c. Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
d. Increase speed as the drill bit bites into the material.
e. When drilling "through" holes, place a block of wood behind the work piece to prevent
ragged or splintered edges on the back side of the hole.
NOTICE: When drilling deep holes, the bit may overheat. Change the direction of rotation and
pull out the bit frequently to clear wood chips from flutes.
Drilling Metal
a. For maximum performance, use high-speed steel bits for drilling metal or steel.
b. Set the mode selector (C) to drilling mode
c. 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 efficiency.
d. Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
e. Maintain a speed and pressure which will allow cutting without overheating the bit.
Applying too much pressure will:
•Overheat the tool.
•Wear the bearings.
•Bend or burn bits.
•Produce off-center or irregularly-shaped holes.
Masonry Drilling
a. For maximum performance, use carbide-tipped masonry bits when drilling holes in brick,
concrete, etc.
b. Set the mode selector (C) to hammer mode
c. Maintain a speed and pressure which will allow cutting without overheating the bit or the
tool. Applying too much pressure will:
•Overheat the tool.
•Wear the bearings.
•Bend or burn bits.
•Produce off-center or irregularly-shaped holes.
d. Apply light pressure and medium speed for best results in brick.
e. Apply additional pressure for hard materials, such as concrete.
f. Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
for best performance.
for best performance.
or best performance.
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