Hole-Saw Bi-metal 1" (25mm)

M2 high-speed steel cutting edge welded to a shatter-resistant spring steel back. Cuts up to 1-5/8" deep. 4/6 Vari-Tooth design for aggressive cutting action and reduced vibration. 3/16" thick heavy-duty backing plate is more durable than stamped backing cups and eliminates need for torque driving plate. Use for heavy-duty cutting in stainless and mild steel, cast-iron, copper, brass, aluminum, plastics, wood, and composition board.No. 1771823: 5/8", use Lenox arbor model No. 1L, 4L, or 5LNo. 1771952: 3/4", use Lenox arbor model No. 1L, 4L, or 5LNo. 1771953: 7/8", use Lenox arbor model No. 1L, 4L, or 5LNo. 1771954: 1", use Lenox arbor model No. 1L, 4L, or 5LNo. 1771955: 1-1/6", use Lenox arbor model No. 1L, 4L, or 5LNo. 1771959: 1-1/8", use Lenox arbor model No. 1L, 4L, or 5LNo. 1771960: 1-1/4", use Lenox arbor model No. 2L, 3L, or 6LNo. 1771961: 1-3/8", use Lenox arbor model No. 2L, 3L, or 6LNo. 1771963: 1-1/2", use Lenox arbor model No. 2L, 3L, 6L, or 7LNo. 1771964: 1-5/8", use Lenox