The Bosch Auto Start pilot bit is one of the latest additions to the Bosch hole saw product line. As with Bosch's entire line of hole saws, these products are part of the patented Quick Change Universal Hole Saw system, which lets you change hole saws in seconds. This pilot bit features a spring loaded, retractable shaft that allows walk-free cutting without a pilot hole. Also this bit features a unique grind that starts holes accurately every time.
- Carbide tip provides extended life in porcelain and granite
- For use with diamond hole saws (3/4 in. - 4-1/8 in.)
- Use with Bosch mandrel models PCM38, PCM12 and PCMSDSPL
- Extend the life of your quick change mandrel