Cyclone HSS Premium Grade Annular Cutter, 3 4 in dia x 2 in Depth, 3 4 in Weldon Shank, Includes Pilot Pin no checkout minimizing lint contamination risks Thin minimizing lint contamination risks Thin 5 ply Kevlar® sewn Split cowhide welding glove with Gunn Wing thumb and full sock lining Heat and abrasion resistant 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