Pilot Point tip starts on contact for clean, accurate holes, and reduces lock-up on breakthrough. No-spin shank eliminates the frustration of bit spinning in the chuck. Tapered web provides greater durability to reduce breaking. Set contains the following sizes: (2) 1/16″, 5/64″, 3/32″, 7/64″, 1/8″, 9/64″, 5/32″, 11/64″, 3/16″, 13/64″, 7/32″, 1/4″, 5/16″, 3/8″, and 1/2″.