7/16"-#21 HSS Threaded Shank Stop Countersink BoltsandNuts.com Spade Type Thumb Screws Zinc

Spade Type Thumb Screws Zinc Clear

Part Number: BIT-D/APY

Part Number D/ACTS

the Tekton 12-pc

Part Number DWRR11/64

7/16"-#21 HSS Threaded Shank Stop Countersink BoltsandNuts.com Spade Type Thumb Screws ZincProduct Description Countersink cutters may be used in all popular adjustable or micro stop countersinking units utilizing a 1 4 28 threaded shank drive. Made from the finest high speed tool steel. Precision ground to exacting tolerances and form relived to insure concentricity of 100 degree countersink angle. Brand Drill America Part Number TSC7 16 21 Size 7 16" #21 Material High Speed Steel Finish Uncoated (Bright) Body Diameter 7 16" Shank Type