Rockwell RK5139K Sonicrafter Hyperlock with Universal Fit Oscillating Tool Kit. Powerful 2.5-Amp motor with variable speed control. Hyperlock tool-free blade changes with up to 1-ton of clamping force to prevent blade slippage. Universal fit system adapts to fit most other brands accessories. Use to cut, saw, scrape, sand, shape, polish, and remove grout. Tool weight is 3.6-Pound.