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OPERATION
NOTE: Excessive pressure may damage the tool, cause
the motor to overheat, and prematurely wear down
the grinding wheel.
ON/OFF SWITCH
See Figure 8.
The bench grinder
features a front
access On/Off
switch for
convenience
and safety.
SHARPENING TWIST DRILL BITS
See Figure 9.
Drill bits are best sharpened on a sharpening jig (available at
most hardware stores). Begin on one side of the point at the
existing angle, then twist the bit while maintaining contact
with the grinding surface. Sharpen only the tip.
This technique requires considerable practice, so take your
time and make a few "dry runs" first with the grinder off.
Be sure to maintain the original cutting edge angle as this
is important to the efficiency of your bits.
On/Off
Switch
Off
Fig. 8
Work rest
Fig. 9
SHARPENING LAWN MOWER BLADES
See Figure 10.
Lawn mower blades are usually sharpened on only one edge
and dressed up slightly on the other. Perform this sharpening
process on both cutting ends of the blade. After sharpening,
be sure to balance the blade by removing additional material.
NOTICE:
An unbalanced lawn mower blade may cause excessive
vibration which will damage the lawn mower.
On
SHARPENING CHISELS AND SCREWDRIVER BLADES
See Figure 11.
When sharpening chisels and screwdrivers, work rest should
support the chisel at the correct angle against the wheel.
7
Screwdriver
Lawn mower
blade
Vise
Fig. 10
Fig. 11
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