Heavy-duty shell and auger tools for use in the toughest of boring conditions. Provided with cable percussion
The California Bit is a specially forged heavy-duty chisel with wide water courses, used for breaking rocks and boulders. Approximately 5ft long and available in nominal sizes 6", 8" 10" and 12".
The Flat Chisel and Cross Chisel are fabricated from thick steel plate and provided with a hard-facing material on the cutting edge. Available in nominal sizes 6" - 24".
The Stubber or Cross Cutter is a three bladed tool designed for removing cohesive clay from the borehole. Available in nominal sizes 6" - 24".
| Dimensions of Chisels and Stubber | |
| Nom. Diameter (inches) |
Tool O.D. (inches) |
| 6" | 5 1/2" |
| 8" | 7 5/8" |
| 10" | 9 5/8" |
| 12" | 11 1/2" |
| 14" | 12 3/4" |
| 16" | 14" |
| 18" | 16" |
| 20" | 18" |
| 24" | 22" |
