Bosch Starlock 4A Oscillating Tool Kit is a powerful and versatile tool that can be used for cutting, sanding, grinding, and more. It features a variable speed of 8,000 to 20,000 SPM and a Starlock interface that delivers greater torque transfer. The no-touch blade change system makes it easy to attach, remove, or reposition blades. The kit includes a 3-1/2" segment blade, 1-1/4" extra clean plunge blade, 1-1/4" plunge blade, sanding pad, 25 sanding sheets, accessory box, and carrying bag.