Model t10446 heavy-duty hammer drill
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section 4: operations
drill bits
the Model t10446 uses sds hammer drill
bits (see
figure 2 for examples).
figure 2. examples of sds drill bits.
slots
installing bit
1. disConneCt tooL FroM poWer!
2. Clean and lightly oil the slotted area of
the selected bit.
3. pull back the locking sleeve and slide
the bit into chuck (see
figure 3).
5. tug on the bit to make sure it will not
come out.
— if the bit does come out when
tugged, repeat
steps 3–4.
removing bit
1. disConneCt tooL FroM poWer!
hammer drill bits become hot when
used. always use a rag or heavy
work gloves when removing a hot
bit.
dust cup
the dust cup slides onto the bit and catch-
es dust when drilling into an overhead
surface (see
figure 4).
4. twist the bit with slight inward pressure
until it no longer moves further into the
chuck, then release the locking sleeve.
2. pull the locking sleeve back and pull
the bit straight out of the hammer drill.
3. When the bit is cool to the touch, clean
it and apply a thin coat of light oil to pre-
vent rust and corrosion during storage.
figure 3. inserting the bit into hammer
drill.
Locking
sleeve
figure 4. dust cup attached.
dust Cup
