Cyclone HSS Premium Grade Annular Cutter, 13 16 in dia x 2 in Depth, 3 4 in Weldon Shank, Includes Pilot Pin no checkout Provides the protection available for Provides the protection available for plasma cutting Injection molded from high grade propionate Lightweight which reduces fatigue Designed for crimping of both insulated and non insulated solderless connections and terminals Slim nose shape for tight places Perfectly mated cutters 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