1. The Multipurpose Cutting Kit allows for sturdy, controlled cuts in a variety of materials including: wood, ceiling tiles, drywall, laminate, fiberglass, plastic and vinyl siding 2. Used for fixing drill bit, milling cutter, and others, keep the more steady. 3. Depth adjustment quickly sets cutting depth up to 3/4inch (19mm) 4. Perfect to make a tool into a small. the threads onto the tool for a and secure for routering. Type: Cutting Attachment Kit Colour:Black+silver Material:Plastic + Steel Size:Tool Converter Height: 48mm/1.89 inch Tool Converter Diameter: 60mm/2.36 inch Inner diameter: 18mm/0.71 inch Outer diameter: 25mm/0.98 inch Maximum Depth Adjustment: 3/4 inch(19mm) Max RPM: 28,000 Drill diameter: 1/8 inch(3.175mm) Hss routing router bits length: 39mm /1.53 inch Twist dirll bit length: 60mm/2.37 inch Package Contents: 1 x Cutting 4 x twist Drill 6 x HSS Routing Router Bits Only the above package content, other products are not included. Note: Light and different displays may the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.