Robert Bosch Tool Group OSL312DG Grout Blade 3-1/2 in Diamond

Product Description

The ROBERT BOSCH TOOL GROUP OSL312DG is a 3-1/2 inch diameter diamond grit grout blade designed for oscillating multi-tools. It features a segmented blade shape that concentrates cutting action in the narrow gaps between tiles, making grout removal faster and more controlled. The premium diamond grit coating is bonded to the blade to extend service life in abrasive grout and tile applications. This blade is built around the Starlock interface, which locks directly into compatible oscillating tool systems for a secure, high-torque connection. Tile setters, remodelers, and flooring contractors reach for this blade when cleaning out joints before re-grouting or removing damaged tiles.

The OSL312DG is suited for residential and light commercial flooring and wall tile work. It handles standard cement-based grout and performs in both floor and vertical tile applications. The Starlock mount is compatible with OIS-format oscillating tools from Bosch, Fein, Milwaukee, Makita, and Ridgid, among others, making it a practical addition to a multi-brand job site without requiring an adapter. It is sold in a package quantity of 25 units, making it appropriate for high-volume service operations or supply stocking.

Key Features

• Premium diamond grit coating for extended blade life in grout and tile cutting
• Segmented blade shape optimized for grout joint removal between tiles
• Starlock interface for secure, professional-grade tool connection
• OIS-compatible mount works with Bosch, Fein, Milwaukee, Makita, Ridgid, and other OIS tools
• 3-1/2 inch diameter suits standard residential and commercial tile joint widths
• Packaged in quantities of 25 for stocking and multi-job use

Compatibility

Fits oscillating tools equipped with the Starlock interface. Also works with OIS-compatible oscillating tools including those made by Bosch, Fein, Milwaukee, Makita, and Ridgid, as well as other OIS-format tools.

Installation Notes

Install and remove oscillating tool accessories only with the tool powered off and unplugged or battery removed. Seat the Starlock mount fully before engaging the tool clamp mechanism to ensure a secure fit. Wear appropriate eye and respiratory protection when cutting grout, as fine particulate is generated during use. Do not use this blade on materials outside its rated application, such as metal or wood.