16-250mm M42 Bi Metal Hole Saw Cutter Drill Bit For Wood Plastic Aluminum Metal
Size Of Arbor Pilot Drill Bit: 5×57mm, suitable for hole saw cutter of 16-30mm;. 6×57mm, suitable for hole saw cutter of 32-55mm;. 6×77mm, suitable for hole saw cutter of 60mm and above. 1pcs hole saw / 5pcsarbor pilot drill bits.