... 2-wings drag bit, 3-wings drag bit, 4-wings drag bit optional. Shapes can do chevron & step as requested. Sizes: 3 3/4", 3.7/8", 4 ... ", 41/4", 55/8 ", 47/8", 6", 7.3/8", 4.3/4",5.1/8", 5.5 ... /8", 5.7/8", 6.1/4", 6.3/4 ... ", 6.5/8" 7.3/8" 9.7/8",11.1/2" etc as requested. Our ...