General purpose flute design but all sizes have a 1/2 by 2-1/4 long shank. The maximum overall length is 6 and the flute length is 3. This makes them short drills in the larger sizes and thus well suited to use in portable electric drills equipped with 1/2 chucks. They are highly effective in tough high tensile strength materials. The 135 degree split point reduces thrust and eliminates walking at the drill point.
| Size (Inches) | Part No. |
| 33/64 | 1000C133 |
| 17/32 | 1000C134 |
| 35/64 | 1000C135 |
| 9/16 | 1000C136 |
| 37/64 | 1000C137 |
| 19/32 | 1000C138 |
| 39/64 | 1000C139 |
| 5/8 | 1000C140 |
| 41/64 | 1000C141 |
| 21/32 | 1000C142 |
| 43/64 | 1000C143 |
| 11/16 | 1000C144 |
| 45/64 | 1000C145 |
| 23/32 | 1000C146 |
| 47/64 | 1000C147 |
| 3/4 | 1000C148 |
| 49/64 | 1000C149 |
| 25/32 | 1000C150 |
| 51/64 | 1000C151 |
| 13/16 | 1000C152 |
| 53/64 | 1000C153 |
| 27/32 | 1000C154 |
| 55/64 | 1000C155 |
| 7/8 | 1000C156 |
| 57/64 | 1000C157 |
| 29/32 | 1000C158 |
| 59/64 | 1000C159 |
| 15/16 | 1000C160 |
| 61/64 | 1000C161 |
| 31/32 | 1000C162 |
| 63/64 | 1000C163 |
| 1 | 1000C164 |
