Newdeli 45 Degree Lock Miter Router Bit 3-Piece Set, For 1/2?, 5/8?, 3/4? Newdeli Lock Miter Router Bit Set is the ideal way to create an interlocking joint for plenty of glue surfaces; the self-aligning characteristic during assembly and to join boards at 90 degrees. Great for a strong and reliable joint. Newdeli Lock Miter Router Bit Set factory-matched router bit set comes with 3 different sizes(1/2?, 5/8?,3/4?Cutting Height) for the different stock, it provides more fixability, convenience, and ease of setup. These lock mitre router bits made of YG6 carbide alloy steel, with high hardness, and the heat treated blade is sharp and smooth. The coated surface, it's rustproof and has a long service life. These 45 degree lock miter router bit with 1/4 inch shank, is suitable for all range?s handheld router and table router.Lock miter bit can take quite a big bite out of the wood, so using these bits in a router table is strongly recommended. 45 degree lock miter router bit could be used for cabinet doors, closet door ,window, wood drawer, window, cupboard and other woodworking projects. Join boards at a 90 degree angle with an interlocking profile for a perfectly aligning joints.