Major Manufacturing HIT-30L-125 Manuale di istruzioni - Pagina 3

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Shown above is a standard twist drill
bit. They can be used on both wood or
steel doors. Be sure to back out the bit
when drilling to clear chips.
Shown above is a tri-flute drill bit. Do
not attempt to use this in a drill guide.
The lack of bearing surface will cause
the bit to jam.
Copyright 2011—Major Manufacturing
Drill Bit Types
All hole saws are not created equal. A
cheap hole saw from a home improvement
center or one that has been dropped can
be out of round and will not fit the drill
Shown above and at right is
a brad point bit. They will
produce a very clean hole in
a wood door. Use at a low
speed and back the bit out
to clear chips. Do not use
on a steel door.
bushings in our templates.
Shown above is a spade or paddle type
bit. Do not attempt to use this in any
drill guide. There is no bearing surface
and you will jam the bit.
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