Model t10446 heavy-duty hammer drill-6-
section 4: operations

drill bits

the Model t10446 uses sds hammer drill
bits (see figure 2 for example s).
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 re moving a hot
bit.

dust cup

the dust cup slides onto the bit and catc h-
es dust when d rilling 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