Product Description Features: 13 Piece Bi-Metal Engineer’s Hole Saw Set HSS hole saws made of shatter-proof and tough HSS bimetal are used on drilling machines and hand-held drills Cost-effective sawing of round cut-outs Can be used on diverse materials such as alloyed a non-alloyed steels, stainless steel (INOX), aluminium, copper, bronze, brass, wood, plastics etc Chattering during sawing is prevented by an alternating tooth pitch of the hole saw Contains: Hole Saw Sizes: 20, 22, 25, 32, 40, 44, 51, 57 & 64mm Hex Shank Arbor: 1/4″ and 3/8″ Pilot Drill: 6/90 (long) Adaptor UPC: 4007220819852 Enquiry Tell A Friend