Hole Saw Kit, Ice Hardened Bi-Metal, Ice Hardened Bi-Metal, Number of Pieces 10, Teeth Variable, Teeth per Inch 4/6, Use Arbor 3TGR9 or 3TGT4, Cutting Holes In Various Materials, Includes Six Hole Saws (3/4 In., 7/8 In., 1-1/8 In., 1-1/2 In., 1-3/4 In., 2-1/4 In.), Two Arbors With Pilot Bits, Two Additional Pilot Bits, One Adapter, One Spacer
Hole Saw Kits- Bimetal kits have M3 high speed steel cutting edge with a hardened steel backer. Carbide kits have a carbide-tipped or carbide grit cutting edge with a hardened steel backer.