Left Hand ASME B94 11M Standard Drill Bit
This is a left-hand series drill bit. It conforms to ASME B94 11M standards.



Technical Specifications
Product Overview
Precision Engineering for Reverse Drilling
These left-hand drill bits are manufactured to comply with the ASME B94.11M standard, ensuring consistent performance for industrial applications. Designed for reverse rotation, they are ideal for removing broken studs or bolts and are available in a comprehensive range of fractional inch and DIN338 metric sizes. Each bit is engineered for durability, with split-point geometry available on all sizes from 1/8" and above to enhance centering accuracy.
Standards & Compliance
- Compliance Standards
- ASME B94.11MDIN338
Product Features
Key Features
Technical Dimensions
Imperial Size Reference
| Size | Decimal | Flute Length | Overall Length |
|---|---|---|---|
| 1/16 | .0625 | 7/8 | 1-7/8 |
| 1/8 | .1250 | 1-5/8 | 2-3/4 |
| 1/4 | .2500 | 2-3/4 | 4 |
| 1/2 | .5000 | 4-1/2 | 6 |
Metric (DIN338) Size Reference
| Dia (mm) | Flute Length (mm) | Overall Length (mm) |
|---|---|---|
| 1 | 12 | 34 |
| 3 | 33 | 61 |
| 6 | 57 | 93 |
| 13 | 101 | 151 |



