- Perfect way to drill those nuts and bolts for use with safety wires without breaking the drill bit
- These guide, align and support the hex head or the bolt threads
- The hex fixture fits nuts and bolt heads that measure up to 1-1/4 inch
- SAE fixture bar is threaded for 1/4 inch, 5/16 inch, 3/8 inch and 7/16 inch bolts
- Metric fixture bar covers M6, M8, M10, and M12 sizes