7pcs set for bi-metal hole saw set (TACSH1071)

7pcs Bi-metal hole saw set Size: 19mm(3/4"),22mm(7/8"),29mm(1-1/8"),32mm(1-1/4"),35mm(1-3/8") 1 pcs adapter：1/2"-20" threads to fit hole saws 5/8"~18"thread 1 pcs arbor：3/8“ Hex Shank，Fit Size：9/16”~1-3/16" Packed by doulble blister