Industrial grade cobalt jobber twist drill bit is perfect for heavy-duty drilling in wood, plastic, hard metal, and composites. 135° split point eliminates a pilot hole and prevents walking/wobbling. COBALT steel and spiral flutes create fast cuts and make the drill bit last longer
- Industrial grade drill bit made for professionals. Precision grounded from solid construction
- Perfect for drilling in hard metal such as stainless steel, wood, and plastic
- Heavy duty, heat-treated High Speed Steel material for extended bit life and the best cutting performance
- COBALT steel finish adds an extra protective layer to make the bit drill faster and last longer
- 135° Split Point tip eliminates “wobbling/walking” by self starting and self centering the drill bit to not require center punch holes
- SPIRAL flutes allows for efficient heat, debris, and chip removal
- Round straight shank on diameters 11/64″ and under. 3 Flats shank on diameters 3/16″ and up
| Cutting Diameter (IN.) | Overall Length (IN.) |
| 1/16″ | 1-7/8″ |
| 5/64″ | 2″ |
| 3/32″ | 2-1/4″ |
| 7/64″ | 2-5/8″ |
| 1/8″ | 2-3/4″ |
| 9/64″ | 2-7/8″ |
| 5/32″ | 3-1/8″ |
| 11/64″ | 3-1/4″ |
| 3/16″ | 3-1/2″ |
| 13/64″ | 3-5/8″ |
| 7/32″ | 3-3/4″ |
| 15/64″ | 3-7/8″ |
| 1/4″ | 4″ |
| 17/64″ | 4-1/8″ |
| 9/32″ | 4-1/4″ |
| 19/64″ | 4-3/8″ |
| 5/16″ | 4-1/2″ |
| 21/64″ | 4-5/8″ |
| 11/32″ | 4-3/4″ |
| 23/64″ | 4-7/8″ |
| 3/8″ | 5″ |
| 25/64″ | 5-1/8″ |
| 13/32″ | 5-1/4″ |
| 27/64″ | 5-3/8″ |
| 7/16″ | 5-1/2″ |
| 29/64″ | 5-5/8″ |
| 15/32″ | 5-3/4″ |
| 31/64″ | 5-7/8″ |
| 1/2″ | 6″ |
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