Self feed boring bits for plumbing and electrical contractors. Heat treated special steel alloy for maximum wear resistance with a replaceable feed screw that easily pull the bit through the material. Drill large diameter holes in wood for piping and conduit.
Each bit includes allen wrench and extra feed screw.
ØD
Rigid Conduit
Tubing
L
Replacement Screw
Tool No.
1"
1/2"
1/2"-3/4"
4-1/2"
500-20
600-350
1-1/8"
1/2"
1"
4-1/2"
500-20
600-352
1-1/4"
3/4"
1-1/8"
4-1/2"
500-20
600-354
1-3/8"
1-1/2"
1-1/4"
4-1/2"
500-20
600-356
1-3/4"
1-1/4"
1-1/2"
4-1/2"
500-20
600-360
2
1-1/2"
1-7/8"
4-1/2"
500-20
600-362
2-9/16"
2"
2-1/2"
4-1/2"
500-20
600-368
3"
2-1/2"
2-7/8"
5-3/4"
500-22
600-370
3-5/8"
3"
3-1/2"
5-3/4"
500-22
600-372
5 piece set includes 1", 1-1/8", 2", 2-9/16", 3-5/8"
