43520 – 5/16″ x 5/8″ Countersink

– DESIGNED – MACHINED – ASSEMBLED IN THE USA – 5/8″ Countersink to drive the head of the screw flush with or slightly below the surface Countersink deeper to drive the screw beneath the surface and cover the head of a screw with a plug (Part # 40340) The 82° countersink angle matches the angle on the head of most wood screws Made of thru-hardened steel for long cutting life Our signature gold set screw will securely hold the twist drill   Drive Shank: 1/4″ Hex Power Bit Shank Drill Size: 5/16″ Ø HSS Twist Drill Countersink Size: 5/8″Ø x 82° Recommended Screw Size: 5/16″ Flat-head machine screw