Feature:1. Clean Without Debris: The cutter can cut into the materials smoothly, resulting in clean, no debris, easy to use2. Anti Kickback Design: Rugged hardened 45# steel material body, come with anti kickback design, more stable and reliable3. CNC Ground to 600 Grit: Milling cutter is CNC ground to 600 grit, which is as smooth as a mirror, which improves working efficiency4. 4 Kinds Cutting Lengths: The router handle size is 8mm, and there are 4 kinds of blade cutting lengths to choose, can meet your different using needs5. Excellent Performance: Finger joint router bits come with stable structure, excellent performance and long service lifeSpecification:Item Type: Finger Joint Router BitCommodity Material: 45# steelTool Handle Size: Approx. 8mm / 0.3in.Package List:1 x Finger Joint Router Bit