The large diameter end bores holes to allow nail or screw heads to enter the slot, and the smaller diameter allows room for the shank of the nail or screw. 25/64" Overall Dia (D), 3/16" Small Dia (n), 7/16" Carbide Height (h...

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The large diameter end bores holes to allow nail or screw heads to enter the slot, and the smaller diameter allows room for the shank of the nail or screw. 25/64" Overall Dia (D), 3/16" Small Dia (n), 7/16" Carbide Height (h), 1/4" Shank, 1-5/8" Overall Length (H), 1/4" Minor Height (m) Ideal For: Cut openings in siding & paneling. Application: Key holes for hanging plaques and shelves. Made In Italy.

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