The Milwaukee OPEN-LOK 6 PC Oscillating Multi-Tool Blade Set, Model 49-10-9112, is a mixed blade kit for contractors and serious DIY users who want one case that covers the most common oscillating multi-tool cutting jobs. This is a oscillating multi-tool blade set designed for multi-material cutting, wood cutting, hardwood cutting, and light metal cutting. Instead of loading your bag with single-purpose blades, this kit gives you a practical spread of profiles and tooth styles so you can move from plunge cuts in wood to cutting screws or wood with nails without stopping the job.

What makes this set useful is the range. Milwaukee includes a high carbon steel wood blade for clean wood, drywall, and PVC; a Japanese tooth hardwood blade for faster, cleaner cuts in hardwood; multiple TITANIUM CHARGED bi-metal blades for wood with nails and other mixed materials; and a NITRUS Carbide extreme metal blade for the tougher stuff. On the job, that means you are not burning up a wood blade on fasteners or reaching for the wrong tooth pattern when you need cleaner control in finish material.

The bi-metal blades matter because they are built for wear resistance where standard high carbon steel blades usually give up early. Milwaukee calls out up to 15 times longer life versus high carbon steel blades for the TITANIUM CHARGED bi-metal options, which is the kind of difference you notice if you regularly cut through embedded nails, drywall screws, or mixed demolition material. The NITRUS Carbide blade pushes this set further by handling extreme metal applications and delivering up to 2 times more cuts than carbide teeth blades according to Milwaukee.

Milwaukee also did the small stuff right. The blades use a reinforced Universal Fit OPEN-LOK anchor for better strength and control, and the design is meant to improve tool-to-blade power transfer. In plain terms, that helps the blade feel more planted in the cut and less sloppy when you are plunge-cutting or trimming flush. The cut-away blade body shape helps with plunge cuts, while the PRO-CURVE cutting edge on the hardwood blade gives you better control when accuracy matters more than brute speed.

For day-to-day use, this is a practical accessory kit rather than a specialty collector set. The black oxide coating helps resist corrosion, and the laser etching makes blade identification easier after the packaging is gone and the case has seen some use. The included hard case is not just filler. It keeps the blade assortment together so you are not digging through loose accessories in a tool bag looking for the one blade that still has teeth left.

Compatibility is a big selling point here. The Milwaukee OPEN-LOK 6 PC Oscillating Multi-Tool Blade Set is built around a universal fit interface that works with all major brands of non-Starlock oscillating multi-tools, and Milwaukee states it allows quick blade changes across 100-plus multi-tools. That makes it a good fit if your crew runs different platforms or if you already own an oscillating tool and just need a reliable blade assortment without locking yourself into one narrow mount pattern.

Who should buy it? Remodelers, carpenters, electricians, plumbers, flooring installers, and punch-list guys are the obvious audience because oscillating tools get used for all the awkward cuts other tools cannot make cleanly. If your work bounces between wood, hardwood, drywall, PVC, fasteners, and occasional metal, this kit makes more sense than buying a stack of random singles. If you run only one very specific material all day, you may eventually want dedicated packs of that blade type, but as a grab-and-go starter or restock kit, this one covers a lot of ground.

Good coverage for the guy who uses an oscillating tool for everything

The Milwaukee OPEN-LOK 6 PC Oscillating Multi-Tool Blade Set is the kind of kit that makes sense in a real truck because it covers the cuts you actually run into instead of padding the case with duplicates you will never use.

• Who it's for: Pros and serious DIY users who bounce between wood, hardwood, drywall, PVC, fasteners, and occasional metal on the same project.
• Why it stands out: You get a true mix of blade types, a universal fit interface, a carbide option for tougher metal cuts, and a hard case that keeps the set useful instead of loose in a drawer.
• Worth knowing: This is for non-Starlock tools, so check your interface before you buy. If you run one material all day every day, eventually you will still want dedicated refill packs of your most-used blade.

• What tools does this blade set fit? It uses Milwaukee's Universal Fit OPEN-LOK interface and is designed to fit all major brands of non-Starlock oscillating multi-tools.
• Can it cut metal? Yes. The set includes bi-metal blades for multi-material work and a NITRUS Carbide Extreme Metal blade for tougher metal-cutting applications.
• Is this a good set for wood with nails? Yes. The TITANIUM CHARGED bi-metal blades are intended for wood with nails, PVC, and drywall.
• Does it work with Starlock tools? No. Milwaukee explicitly states this set is not compatible with Starlock tools.