Bi-metal hole saw set

13 Pcs Bi-metal hole saw setMaterial: HSS M3 Bi-metalSize:19mm(3/4")/22mm(7/8")/29mm(1-1/8")/35mm(1-3/8")/38mm(1-1/2")/44mm(1-3/4")/51mm(2")/57mm(2-1/4")/64mm(2-1/2")1 pcs arbor:3/8" Hex ShankFit Size:9/16"~1-3/16"1 pcs arbor:7/16" Hex ShankFit Size:1-1/4"~8-17/64"1 pcs adapter arbors with 1/2-20 threads to fit hole saws 5/8-18 threads1 pcs pilot drill1 pcs hex key wrenchPacked by plastic case