Combo Drive Flat Head Self Tapping Screw Gauge
Category: Self Tapping Screws
Self tapping screw gauge can cut their own threads as the screw is driven in to the material. They function by having a cutting edge which drills away the material, making a tiny hole for the screw to go into. This has nothing to do with the point of the screw but has everything to do with the threads which are designed to cut through the material.
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