HSS TAPER SHANK INTERCHANGEABLE PILOT COUNTERBORE

Tool Diameter5/16″ Flute Count (NOF)
Pilot Drill Diameter (PDD)3/32″ For Screw Size5/16″ 
Overall Length (OAL)‎3-13/16″ Cutting Edge MaterialHSS 
Shank Size (SS)1MT 

Product Features

Remarks
•Interchangeable Pilot Counterbores •High Speed Steel