Description
Centre drill (combined drill and countersink) with 82 Degree straight conical form, double ended and cylindrical body, size 5 with 3/16″ drill diameter, a body diameter of 7/16″ and an overall length of 2.3/4″, according to ANSI standard to produce form A centre holes or starting pilot and conical seat for US standard countersunk-head screws, HSS and bright finish for machining free machining, plain carbon and alloy steel and grey cast-iron.

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