15/16 x 12 High Speed Long Boy (1/2" Shank) Phillips Wafer Cement Board Screws 5/8-18 x 8 Socket Cap

15 16 x 12 High Speed Long Boy (1 2" Shank) Phillips Wafer Cement Board Screws 5 8 18 x 8 Socket Cap 5 8 18 x 8 Socket Cap Screw Alloy Precision ground for high degree of concentricity between shank and body diameter 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 15 16 x 12 High Speed Long Boy (1 2" Shank)