The Milwaukee free M18 battery deal at Home Depot wraps up today (May 10). The replacement is already live: Home Depot’s broader Milwaukee Memorial Day sale includes a strong free-tool promotion on the M12 platform, running through Memorial Day weekend.
The Deal Structure
Buy a qualifying Milwaukee M12 kit from Home Depot and pick one of the following free tools (up to $149 value, depending on which you choose):
- M12 3/8″ Cordless Ratchet — tool only
- M12 Compact Spot Blower — tool only
- M12 Portable Inflator — tool only
- M12 Oscillating Multi-Tool — tool only
- M12 Soldering Iron — tool only
To claim: add a qualifying M12 kit to your cart, then select the free item from the “Free Gift with Purchase” box. Qualifying kits include the M12 Hammer Drill + Impact Driver combo and the M12 Straight Die Grinder kit, among others. Check the product page for the full list of eligible kits.
The Combo Kit Stacking Opportunity
Milwaukee M12 5-tool combo kits are also on sale at up to 50% off during the Memorial Day event. That means you can buy a multi-tool kit at half price, then stack the free tool offer on top — getting five or six M12 tools at a fraction of their individual retail cost. For someone building out an M12 kit from scratch, this is one of the better windows of the year to do it.
Who the M12 Platform Is For
M12 hits differently than M18. It’s not about raw power — it’s about compact size and weight for trade-specific work in tight spaces: HVAC, electrical, plumbing, automotive. The M12 ratchet has become a genuine mechanics’ tool. The inflator lives in a work truck. The OMT fits into wall cavities. The platform has 100+ tools precisely because the trades use it in places an M18 doesn’t fit.
If you’re on M12 and considering an upgrade, or comparing Milwaukee against DeWalt for a full platform purchase, read our 2026 breakdown: Milwaukee vs DeWalt 2026. For the overall combo kit landscape across brands: Best Cordless Tool Combo Kits 2026. And for the battery platform investment question: Battery Platforms 2026: Milwaukee vs DeWalt vs Makita.
