JETS DRILL SET with PIN VISE 4 chucks, 35 drills in box size: 0. 3 0. 35 - 0. 4 - 0. 45 - 0. 5 - 0. 55 - 0. 6 - 0. 65 0. 7 0. 75 - 0. 8 - 0. 85 - 0. 9 - 0. 95 1. 0 1. 05 - 1. 1 - 1. 15 - 1. 2 - 1. 25 - 1. 3 - 1. 35 1. 4 1. 45 - 1. 5 - 1. 55 - 1. 6 - 1. 65 - 1. 7 - 1. 75 1. 8 1. 85 - 1. 9 - 1. 95 - 2 - 2. 1 - 2. 2 - 2. 3 - 2. 4 - 2. 5 You can calibrate or clean these jet sizes: 30, 35, 40, 45, 50, 55, 60, 65, 70, 75, 80, 85, 90, 95, 100 105, 110, 115, 120, 125, 130, 135, 140, 145 150, 155, 160, 165, 170, 175, 180, 185, 190, 195, 200 210, 220, 230, 240, 250 This tool can be also used to enlarge jets. You need to enlarge in small steps.