9PCS HSS HOLE SAW SET 9PCS HOLE SAW SET6PCS HOLE SAWSIZE: 22MM , 28MM , 35MM , 44MM , 67MM , 73MM,MATERIAL:BI-METAL (H.S.S TIP)FINISH:ROAST PAINT3PCS ARBORSSIZE: 1PCS x 1/4 round, fit 14-30mm1PCS x 7/16" hex, fit 32-210 mm1PCS ADAPTERr: 1/2"-20 UNF-5/8" - 18UNFMATERIAL:CARBON STEELFINISH: BLACK FINISH