- Bosch
- 3/8 Quick Change Mandrel with Autostart Pilot HDGQA
- For use with Diamond Grit Hole Saws
- Advanced design allows you to change the size or type of hole saw in seconds and offers easy plug removal
- Retractable shaft allows walk-free cutting without a pilot hole
- Carbide tip provides extended life in materials as hard a porcelain and granite
- Pilot bit offers unique grind that starts holes accurately every time
- 3/8″ Shank
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