Function: Suitable for all types of cutting and engraving machines. For finishing wood edges. Suitable for edge trimming, 3D gap angles and grooving. with a ball bearing for precise cutting of your wooden edges. High Quality Material: Router bits made of ground tungsten steel, sharp and durable, precisely balanced for smooth operation. The rod is made of 45 gauge steel for very high strength and resistance to deformation. Use: Flush cutter shank useful for cutting, grooving, etc. such as DIY projects, can be used for finishing a wide range of materials including solid wood. For your daily carpenter work offers a lot of comfort. Tips: Copy cutter with ball bearings for trimming flush wood trim edges. The ideal replacement tool for woodworkers. Cannot be used on glass, metal, concrete, etc. The package contains: 4 pieces Router bits. Total length 58.4 mm, 71.1 mm, 85.7 mm, 96.5 mm.