... (W6Mo5Cr4V2), M35(HSS-CO5%), M42(HSS-CO8%) Shank: One touch shank, Weldon shank, Fein quick in shank, Fein thread shank. Cutting Length: 25, 35mm, 50mm, 75mm ... stee, stainless steel, copper, aluminum, etc. PACKAGING&DELIVERY TIMEPACKING:EACH WITH PLASTIC BOXDELIVERY TIME:30-60DAYSPICTURE HSS Annular Cutter with Weldon Shank