Bosch's Oscillating Interface System, or OIS, is a unique 12-pin design that provides a secure connection between the multi-tool and accessory necessary for high torque operations. Bosch multi-tool accessories are faster, last longer and fit all multi-tools on the market directly or with the OIS adapter.
- Hybrid blade design combines a 1/8 in. kerf grout blade with a delta rasp for grout removal and thinset grinding
- Teardrop shape allows for easy corner work
- Superior braised carbide coating ensures long blade life
- 2-1/2 in. 3Max Hybrid Grout Blade - OSC212HG