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Drilling and counter-boring handle scales - (Work in Progress)
In this example I will be installing handle scales onto a tapered tang knife, using what are called "Corby bolts" or "Corby Fasteners". These particular stainless steel Corby bolts have a 0.313" head diameter, and have approximately a 0.207" mid-section diameter; therefore clearance for the mid-section must be at least 0.215" to 0.220". More clearance in the drilled through diameter for the midsection offers no benefit, as the counterbore must be on-target to allow the scale to fit tightly to the guard.
I prefer a dedicated counterbore tool with a pilot, over those offered by the knife supply shops which combine a pilot drill with a counterbore tool. The inexpensive, ground drill type tools, increase material stress
This page was last modified on Saturday, 08-Dec-2012 01:17:12 CST
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