Milwaukee OPEN-LOK 49-25-2272 Diamond MAX Grout Removal Blade

The Milwaukee 49-25-2272 delivers 15x longer life than standard carbide grit blades through its Diamond MAX technology and unique bonding process. At 0.08 pounds with a 1/8 inch kerf, this blade combines precision cutting capability with universal compatibility across 100+ non-Starlock oscillating tools. For contractors handling frequent grout removal, the math on blade replacements alone justifies the investment.

Diamond Technology and Universal Compatibility

Diamond MAX uses higher-grade diamonds with superior heat and fracture resistance, secured through a unique bonding process that improves diamond retention. This isn’t marketing fluff — multiple sources confirm the 15x longer lifespan versus standard carbide grit blades. In Montana’s rural areas where the nearest supply store might be hours away, fewer blade changes mean fewer trips off the jobsite.

The reinforced Universal Fit OPEN-LOK anchor provides stronger grip and rapid blade changes. The blade snaps into any non-Starlock oscillating tool spindle, including Milwaukee M12 and M18 Multi-Tools, DeWalt, Makita, and other major brands. Montana contractors running mixed tool fleets don’t need separate blade inventories for each platform.

Specification	Value
SKU	49-25-2272
Dimensions	3.88” × 0.53” × 6.38”
Kerf	1/8 inch
Weight	0.08 lb
Material	Diamond-coated (Diamond MAX)
Coating	Black-oxide corrosion resistance
Compatibility	100+ non-Starlock tools

Precision Design for Professional Results

The curved edge design allows for more control when cutting and faster grout removal. The raised anchor and segmented design enable flush cutting and corner work without over-cut — critical when working against finished surfaces or in tight bathroom renovations where one slip means replacing expensive tile.

The blade features a segmented design that helps clear debris during cuts. Combined with the 1/8 inch kerf, contractors get precise grout removal without wandering into adjacent tiles. Laser-etched identification provides long-lasting markings for easy blade identification in a crowded gang box.

The single negative review on Milwaukee’s official site (from ‘DIY_Steve’) reported rapid wear on a small area, though this conflicts with the 4.56 average rating across 1,024 reviews on Red Tool Store. One customer review suggested the older part number 49-25-2271 might have better longevity in some cases.

FAQ

What tools does this blade work with? The blade works with Milwaukee M12 and M18 Multi-Tools, DeWalt, Makita, and other major brands of non-Starlock oscillating tools. Dremel tools may require an adapter for certain models. It won’t work with Starlock-type tools.

How much longer does it really last? Milwaukee claims 15x longer life than standard carbide grit blades. Higher-grade diamonds provide superior heat and fracture resistance, which translates to fewer blade changes on multi-bathroom commercial jobs.

What’s the actual cutting width? The kerf measures 1/8 inch. This precision width removes grout cleanly without damaging adjacent tiles.

Does it come with a case or multiple blades? The blade is sold individually and does not include a case. You get one blade per package.

Is there a specific warranty? Milwaukee accessories are generally guaranteed against defects in material and workmanship. They do not typically carry a specific multi-year warranty like Milwaukee power tools.