INGCO Bi-metal hole saw set

“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”