(Please specify taper: 11 degree taper is standard.)

Bit Diameter
For 7/8" Steel
For 1" Steel
1-1/8"TP78SC118
1-1/4"TP78SC114
1-3/8"TP78SC138TP1SC138
1-1/2"TP78SC112TP1SC112
1-5/8"TP78SC158TP1SC158
1-3/4"TP78SC134TP1SC134
1-7/8"TP78SC178TP1SC178
2"TP78SC200TP1SC200