Cyclone HSS Premium Grade Annular Cutter, 1 1 2 in dia x 2 in Depth, 3 4 in Weldon Shank, Includes Pilot Pin ORS NASCO with increased dexterity Choose from lightly powdered with increased dexterity Choose from lightly powdered with smooth grip (7005) and powder free with textured grip (7005PF) styles Cradle Technology™ uniformly contouring to patella allowing knee and knee pad to work as one unit Gel injected EVA foam padding is ideal for hard surfaces Neoprene split strap keeps knee pads comfortably in place Hard PE cap with slip resistant ridges Evolution standard geometry is sufficient for most drilling applications Manufactured specifically to maximize hole accuracy while minimizing cutter vibration and extending annular cutter life Using this standard geometry enhances accuracy and saves time This allows for a single ejection of slugs when drilling through stacked material