6
Using Bits with Short Shanks
When using bits with short shanks, it will be
necessary to attach the spindle extension.
Place an open wrench on the flat part of the
motor spindle. Use the chuck key to unscrew
and remove the chuck. Attach the spindle
extension to the chuck. Replace the chuck with
the spindle extension into the motor spindle.
Chisel and Bit Adjustment
See Figure 7
1. Insert chisel bushing with hole facing
forward into the head. Tighten the screw
just enough to hold the chisel in place.
2. Insert bit into the chisel. The opening in the
chisel should always face to the right or left.
The opening allows chips to escape during
operation.
3. Push the chisel up as far as possible into the head.
Then lower the chisel approximately 1/16” – 3/16”.
Tighten the screw to hold chisel in place.
4. Push bit up through the chisel opening as far as it
will go. Lock the drill bit in place with chuck key.
5. Loosen screw and push chisel up against the
bushing, and tighten the screw. This should
provide the proper distance between the
points of the chisel and the bit. Some types
of wood may require 3/16” clearance.
Adjusting Chisel Parallel to Workpiece
The chisel can be adjusted parallel to the
workpiece by loosening the screw (A, Fig. 8) and
rotating the chisel until the back surface of the
chisel is flat against the workpiece. Tighten the
screw to hold chisel in place.
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