Locks screws into place while you grind them off to length, file them down or shape the point. Saves untold hours spent looking for the screw the wheel flipped under the grinder, down the exhaust port or across the shop. Holes are for 6-48 and 8-40, but take most smaller and "in-between" sizes. Mfg: Brownells SPECS: Blued steel. 2-3/8" long, 3/8" wide.
