Product Manual

PREPARATION & ADJUSTMENTS

INSTALLING THE MORTISER BIT

A mortiser bit consists of a hollow chisel sharpened on four sides to cut the edges of the square, and an auger bit

inside the chisel that spins to clear materials. When the handle is pulled, the machine drives the cutters into the

workpiece. The auger bit has to go in the workpiece ﬁrst, followed by the chisel bit, to square up the walls of the cut.

Your mortiser comes with three mortiser bits with shank diameter of 3/4” and chisel size of 1/4”, 3/8” and 1/2”.

Select the suitable bit in be installed for your cut.

WARNING! To prevent injury from accidental operation, make sure the tool is switched OFF and unplugged

from the power source before assembling the tool or making any adjustments.

WARNING! The chisel bits are very sharp. Be careful when handling the bits and do not touch the sharp tip.

Each tip is protected with a plastic cap. Always cover the tip with the protective cap when not in use.

1. Remove the two plastic chuck key holders (Fig. 13 - 1) to

access the spindle chuck. Remove the chip guard if needed.

2. Use the included hex key to loosen the chisel lock screw

(Fig. 14 - 1).

3. Remove the plastic chisel cap. Place a block of wood (Fig.

14 - 1) under the bit to support it as you insert the bit into the

chuck. Do not touch the tip of the bit with your hand.

NOTE: The opening on the chisel directs chips out during

the cut. We recommend orienting the open face towards the

front, so the chips won’t clog up your cut.

You may also install the chisel with the opening facing left or

right, depending on your personal preference.

4. The bit-to-chisel clearance is crucial for proper opera-

tion. The tip of the chisel needs to be set slightly higher than

the tip of the auger bit, with a clearance of about 1/16 inch

(can vary depending on the type of wood, adjust clearnace

amount as necessary).

To set this clearance, use a 1/16 inch feeler gauge or quar-

ter coin (Fig. 14 - 2). Insert it between the chisel shank and

the bushing. Tighten the chisel lock screw (Fig. 14 - 3). just

enough to hold the chisel in place.

Fig. 13

Fig. 14

5. Now time to tighten the auger bit. Grab the chuck key and fully insert the tip into the chuck hole (Fig. 15). Hold-

ing the chuck stationary while rotating the chuck key clockwise to fully tighten. Make sure to tighten all three chuck

holes, so the pressure on the auger bit is distributed evenly.

6. Take out the clearance feeler gauge or coin (Fig. 14 - 2). Slightly loosen the chisel lock screw. Push the chisel

upwards until it is seated against the bushing.