The Draper 98437 Storm Force Angle Grinder/Cut-Off Tool features brushless technology The Draper 98437 is an extremely compact cordless angle grinder with an ergonomic soft-grip handle for added user comfort. Supplied with blade guard and disc changing hex key. Compatible discs for grinding and cutting a range of materials are available. The Draper Storm Force 10.8V interchangeable battery system allows you to combine one battery with any of the tools within the 10.8V Storm Force series (not compatible with Draper Storm Force 20V). Features: Brushless technology Lightweight and versatile in hard to reach places Specifications: Bore: 10mm Spindle thread: M5 Disc diameter: 76mm Max cut depth: 15mm Weight (bare tool): 0.56kg No-load speed: 0-18500rpm Battery: 10.8V Storm Force Li-ion