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The Milwaukee 2525-21 is a cordless rotary tool built on the M12 battery platform. Its brushless motor and REDLINK electronics hold speed under load, and a 12-setting dial spans 5,000 to 27,500 RPM. At 0.8 lbs it is far lighter than a corded Dremel-style tool and runs without a cord, which suits work in panels, engine bays and tight cabinets. Against corded rotary tools it gives up unlimited runtime and some top-end RPM, and against the smaller Dremel Lite it offers more speed settings, a brushless motor and a fuel gauge. Owners of the M12 line like that it shares batteries with their other tools.
In stockSold by Spectra PrimeReturns: Sold by a Walmart Marketplace seller; returns go to the seller under the seller's returns policy.
Owners of the M12 platform rate it as a precise, well-balanced cordless rotary tool that holds speed under load. The main complaints are the single included collet and the need to buy extra batteries for long jobs.
The Milwaukee M12 Brushless Rotary Tool Kit (2525-21) is a compact cordless rotary tool for cutting, grinding, sanding, polishing, and detail work. It is made for maintenance professionals, electricians, automotive technicians, fabricators, and advanced DIY users.
It has a brushless motor and REDLINK Intelligence, which delivers 30 percent higher RPM under load. A 12-speed dial adjusts from 5,000 to 27,500 RPM, so the speed can be matched to the material and task. The tool weighs 0.8 lbs and has an ergonomic design for extended use and detailed work.
An integrated LED work light illuminates the work surface. An integrated collet wrench allows quick accessory changes. An on-board fuel gauge shows the remaining battery runtime. The tool includes a 1/8 in steel collet and accepts 1/32 in, 1/16 in, and 3/32 in collets, which are sold separately.
