1 2 x 12 High Speed Long Boy Square Bugle Head Self Drilling Screws 410 Stainless Steel 8 x 1 1 4 Phillips 8 x 1 1 4 Phillips Wafer Hi Low Cement Board Screws w Nibs Sharp Point Ruspert Coated Carton (5000) 6 x 2 Phillips Bugle Decking Screws Dacrotized Carton (3500) 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 1 2 x 12 High Speed Long Boy