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1600A034F4 AA Dremel DD12V OSI 20240729.indd 22
1600A034F4 AA Dremel DD12V OSI 20240729.indd 22
Drill/Driver Operating Tips
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Fig. 22
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Drill Bits
Always inspect Drill Bits for excessive wear.
Use only Bits that are sharp and in good
condition. Only use drill bits with 1/4" hex
shanks and power groove.
Twist Bits: For wood and light duty metal
drilling. High speed bits cut faster and last
longer on hard materials.
Drilling Wood
(Fig. 1)
Be certain the 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.
Drilling Metal
There are two rules for drilling hard materi-
als. First, the harder the metal, the greater
the pressure you need to apply to the tool.
Second, the harder the metal, the slower
the speed.
Here are a couple of tips for drilling in metal.
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7/29/2024 5:00:22 PM
7/29/2024 5:00:22 PM
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