Countersink six flute Used for drilling holes with chamfered edges or 60, 90 taper hole.Able to drill taper holes in one operation, especially for small cutting depth machining. Description CNTRSNK - SINGLE FLUTE, HSS, 82°, 3/16"CNTRSNK - SINGLE FLUTE, HSS, 82°, 1/4"CNTRSNK - SINGLE FLUTE, HSS, 82°, 5/16"CNTRSNK - SINGLE FLUTE, HSS, 82°, 3/8"CNTRSNK - SINGLE FLUTE, HSS, 82°, 1/2"CNTRSNK - SINGLE FLUTE, HSS, 82°, 5/8"CNTRSNK - SINGLE FLUTE, HSS, 82°, 3/4"CNTRSNK - SINGLE FLUTE, HSS, 82°, 7/8"CNTRSNK - SINGLE FLUTE, HSS, 82°, 1"CNTRSNK SET, SINGLE FLUTE, 82°, 5 PCE.CNTRSNK - THREE FLUTE, HSS, 82°, 1/4"CNTRSNK - THREE FLUTE, HSS, 82°, 3/8"CNTRSNK - THREE FLUTE, HSS, 82°, 1/2"CNTRSNK - THREE FLUTE, HSS, 82°, 5/8"CNTRSNK - THREE FLUTE, HSS, 82°, 3/4"CNTRSNK - THREE FLUTE, HSS, 82°, 1"CNTRSNK SET, THREE FLUTE, 82°, 5 PCE.CNTRSNK - SIX FLUTE, HSS, 82°, 1/4"CNTRSNK - SIX FLUTE, HSS, 82°, 5/16"CNTRSNK - SIX FLUTE, HSS, 82°, 3/8"CNTRSNK - SIX FLUTE, HSS, 82°, 1/2"CNTRSNK - SIX FLUTE, HSS, 82°, 5/8"CNTRSNK - SIX FLUTE, HSS, 82°, 3/4"CNTRSNK - SIX FLUTE, HSS, 82°, 7/8"CNTRSNK - SIX FLUTE, HSS, 82°, 1"