The Fein 71293864240 AMM 500 Plus AS 18V BL Oscillating Multi Tool Bare Unit is ideal for professional carpenters, fitters, plumbers and mechanics. The multi tool has a powerful brushless motor that can give out oscillations of 11,000 – 18,500rpm and is also virtually wear-free to ensure long-life usage. This tool is also equipped with a Tacho generator which will provide this constant speed even when under load, and you will have more control over applications thanks to the variable electronic speed control. With power and performance comes versatility. The unique StarlockMax tool mounting affords precision because of a 100% power transmission, without losses, while the QuickIN system allows you to change tools in three seconds. Powerful and easy to use, but Fein have also made this.