Twist Drill Bit 17pcs 12pcs hss drill bits 5pcs masonry drills Twist Drill Bit17pcs 12pcs hss drill bits5pcs masonry drills12pcs HSS Drills: 1/16”, 5/64”, 3/32”, 7/64”, 1/8”, 9/64”, 5/32”, 3/16”, 13/64”, 7/32”, 15/64”, 1/4”5pcs Masonry Drills: 4mm, 5mm, 6mm, 7mm, 8mm,