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7.5 AMP HAMMER DRILL 15
OPERATING INSTRUCTIONS
Remember to use a “wood-pecker” action on deep holes to allow the swarf to be ejected
from the hole.
If the drill bit snags, switch off immediately to prevent permanent damage to the drill.
Try running the drill in reverse to remove the bit.
Keep the drill in line with the hole. Ideally, the drill bit should enter at right angles to the
work. If the angle is changed during drilling, this could cause the bit to snap off blocking
the hole and perhaps causing injury.
Reduce pressure as the drill is about to break through the item being drilled.
Don’t force the drill, let it work at its own pace.
Keep the drill bit sharp.
9. Drilling wood
For maximum performance when drilling larger holes, use auger bits or spade bits for wood
drilling.
Set the tool to the drill mode.
Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
Increase the speed as it bites into the wood. When drilling through holes, place a block of
wood behind the work piece to prevent ragged or splintered edges on the back of the hole.
10. Drilling metal
For maximum performance, use HSS drill bits for metal drilling.
Set the tool to the drill mode.
Mark off the centre of the hole using a centre punch.
Use a suitable lubricant for the material you are working on.
Begin drilling at a very low speed to prevent the bit from slipping off the starting point.
Always clamp sheet metal. Support thin metal with a block of wood to avoid distorting it.
11. Drilling Mason ry
For maximum performance, use high quality carbide-tipped masonry drill bits when drilling
holes in brick, tile, concrete etc. Use the drilling setting initially then revert to the hammer
action once the holes are established.
Apply light pressure and medium speed for best results in brick.
Apply additional pressure and high speed for hard materials such as concrete.
When drilling holes in tile, practice on a scrap piece to determine the best speed and pressure.
NOTE: Reverse rotation during impact drilling may damage the drill and drill bit.
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