5/16" Taper Pin Drill Straight Shank .316 Large-end dia x .2223 Small-end dia x 4.1/2 Cut length x 6.3/8" Overall length
Taperpin Drills HSS with straight shank (plain-end) with chipbreakers throughout the cutting edge and having special web and helix angle. Used for making tapered holes with 1:48 taper for inch and 1:50 for metric sizes. British made
Click on Taper Pin Drills Inch to buy all sizes from 3/32" to 7/8"
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