multi-spur pipe bit - side and front view
Multi-Spur Pipe Bits are made of Special Tool Steel. Beveled saw teeth allow smooth boring of holes. Inside cutter pushes chips to rear of bit, allowing deep holes to be bored without clogging. Ideal for plumbing and electrical work.
Multi-Spur Pipe Bits page 168B

SIZE APPLICATIONS
1 -
1-1/8 3/4" Pipe Entrance
1-1/4 -
1-3/8 1" Pipe Entrance
1-1/2 1-3/8" Tubing
1-3/4 1-1/4" Pipe Entrance
2 1-1/2" Pipe Entrance
2-1/8 Door Locks
2-1/4 2" Tubing
2-9/16 2" Pipe Entrance
3 2-1/2" Pipe Entrance
3-5/8 3" Pipe Entrance
4-5/8 4" Pipe Entrance
Multi-Spur Pipe Bit Sets page 168B
Multi-Spur Pipe Bit Sets are available in the following quantities:

4pc - 1-3/8, 1-1/2, 2-1/8, 2-9/16
8pc - 1, 1-1/8, 1-1/4, 1-3/8, 1-1/2, 1-3/4, 2, 2-1/8
Screw Point Pilot Drills page 168B
Replacement Screw Point Pilot Drills for Multi-Spur Pipe Bits.

SIZE FITS STYLE
3/16 1-3/8 - 1-1/2 Double End
1/4 1-3/4 - 2-9/16 Double End
3/8 3-5/8 Single End