Page 1 of 4 LIT-181
Set both dials at 0° to the register marks
(FIG. 1). Slide the fixture onto the base post
and hold it out in front of you. Position the
fixture so that it is square to your body and
the tool being sharpened is pointing “straight”
away from you (FIG. 2). As you change this
angle, the position of the fixture will rotate
down (FIG. 3).
The TOOL DIAL can turn left or right 360°, but always use one
of the 0° as a reference point. After grinding the face angle, turn
the tool over (180°) by rotating from reference point 0° to new
reference point 0°. Now you can set the angles desired, left and
right, from the new 0° reference point.
GETTING THE GRAVER READY TO SHARPEN
Most tools need some type of preparation before sharpening.
Shank modification to fit a hand handle or power handpiece,
or just shortened to fit your personal needs. GRS Tools offers
gravers that are already modified
and ready to be sharpened.
Removal of excess metal from the
top/front of the tool tip makes it
quicker and easier to re-sharpen
(FIG. 4). It also allows a better
view of the tip when in use. You will need to use a bench grinder
or a Power Hone with a 260 grit wheel. Rough grind with a bench
grinder first, then true the surface with the Power Hone if you
desire. When using a bench grinder, eye protection MUST BE
WORN. A face mask should also be worn to prevent breathing
wheel dust.
Tools can easily be damaged while grinding. Do not let the tool
tip get hot and burn. Burning means the tool metal will turn blue,
which takes the temper or hardness out of the tool and it will not
hold a cutting edge. To avoid burning the tool, take your time and
do not press too hard against the wheel. Have a container of
water by your grinder and frequently dip the tool BEFORE it gets
warm in your hand.
MOUNTING A TOOL IN THE TOOL DIAL
Open and close the jaws by turning the Jaw Thumb Screw. The
illustration below shows the correct placement for holding square
and traditional gravers. Properly position the graver squarely in
the jaws and tighten snugly
with your fingers, but do not
overtighten. A secure hold
prevents tool movement.
HINT: Use the 0° by the
Jaw Thumb Screw when
sharpening the FACE
ANGLE. Lock the dial into
position before inserting a
tool. When inserting the tool,
make sure its face angle is
facing down, away from the
Jaw Thumb Screw.
FIG. 1
Dual Angle Sharpening Fixture
INSTRUCTIONS • 003-570
FIG. 2
FIG. 3
FIG. 4
SUGGESTIONS ON HOW TO PRE-SHAPE THE GRAVER
FIG. 5
FIG. 6
