Milwaukee 2460-21, M12 12 Volt Rotary Tool Kit
Milwaukee calls their mini die grinder a rotary tool, but it’s essentially the same thing. This compact unit weighs only 1.3 pounds and comes with a 1/8 inch collet. It is a variable speed unit, ranging from 5,000 RPM all the way up to 32,000 RPM, making it the fastest cordless die grinder around. The 12 volt battery recharges in 30 minutes to get you back to work as quickly as possible.