Shaper Tools 4mm X 15mm Up-Spiral Flat Router Bit is engineered for high-performance cutting across a variety of materials. Featuring a 15mm cutting length, it provides extended reach while ensuring stability during deep roughing passes. This router bit also delivers a smooth finish on deep finishing passes, enhancing the overall quality of your workpiece. Designed to support high feed rates, it enables efficient material removal without compromising cut quality, making it versatile for numerous applications. Compatible with routers that have a 4mm collet, it is for precision routing tasks in woodworking and other industries. Model Number: SF1-8-4F2