- Patented micro-groove cutting edge and spurs produce a smoother hole finish
- Double spur design scribes the hole before the chips are made, producing a cleaner hole and reducing vibration
- Extra length provides added reach
- Not for use with bit extensions
- All extra-long flat bits are 16" long
![Irwin Speedbor® Flat Bit, 5/8", #IR-88810 (6/Pkg) Irwin Speedbor® Flat Bit, 5/8", #IR-88810 (6/Pkg)](https://cdn11.bigcommerce.com/s-gdy1ehz/images/stencil/500x659/products/257764/443541/88809__31504.1666291321.jpg?c=2)