Flat countersunk head with self-countersinking nibs

5/8-11 x 8 Socket Cap Screw Alloy

7/8-14 x 4 Grade 8 Hex Cap Screw Yellow Zinc Plated

5/8 x 8 ITM SDS Plus Hammer Drill Bit

Typical hardness on diameters 1/4 to 1 inch is HRC 25-34

5/8 x 18 High Speed Long Boy (1/2" Shank) 1-8 Grade 5 Hex Cap Screws Zinc Plated Flat countersunk head with self-countersinking5 8 x 18 High Speed Long Boy (1 2" Shank) . Straight shank to 1 2 1 2 reduced shank for sizes above 1 2 M2 high speed steel Sharp cutting edge to drill in many different materials: Mild Steel Cast Iron Aluminum Wood Extra length flute with continuous cutting edges for drilling deep holes and fast chip removal Reduced shank fits all drill motors with 1 2 chucks Non slip grip prevents the bit from spinning in the chuck