Milwaukee 49-59-2063 HSS Annular Cutter 5/8-Inch x 2-Inch Depth The product is easy to use The product is durable The product is manufactured in Germany 20% Thinner Wall Construction - Faster Cutting due to less material being removed for the same size hole. Duel Alternating Tooth Geometry - More aggressive cutting as well as increased chip ejection. Cuts up to 15% faster. Proprietary Steel and 3 Hardness Zones - Makes the bit less susceptible to breakage. 3/4" Weldon Shank - Fits most small magnetic drill presses. One Centering pin size for all 2" depth cutters. Ejector pin sold separately. Diameter 5/8" Cutting Depth 2 in Diameter Shank 3/4 in