The Bosch StarlockMax(R) Oscillating Multi-Tool Kit supplies a tool that features the Starlock(R) next-generation 3D tool-accessory interface. This interface provides best-in-class accessory grip, generates extreme force transmission produced by the 5.5 Amp motor. The Starlock(R) interface is a cupped 3D tool-accessory connection that delivers greater torque transfer. This tool delivers a top speed of up to 20,000 oscillations per minute, and the tool provides a wide 3.6° oscillating arc. No-touch blade-change system makes it easy to attach, remove or reposition blades. A variable-speed dial allows the user to set the optimal speed. Constant Response circuitry maintains the desired speed under load. Reinforced gearing for more durability & less vibration. Under 4 pounds, this tool delivers an unsurpassed power-to-weight ratio. Provides exceptional versatility, compatible with all Starlock(R) and StarlockPlus(R) accessories in addition to the industrial-grade StarlockMax(R) accessories.