The Rockwell RK2522K2 Cordless Sonicrafter with Universal Fit System and (2) 12V lithium-ion batteries is the perfect go-anywhere and do-anything multi-tool. No more searching around or shopping for the proper brand blade. The Cordless Sonicrafter will allow other brand blades to fit securely without slippage on the Universal Fit System. The RK2522K2 Cordless Sonicrafter also has variable speed control which allows for precision cuts when tackling detailed jobs or even heavy duty tasks. Its effortless design, and flexibility as a multi-tool, will make it your go-to and go-anywhere tool on the jobsite or around the house.