Whiteside HU4125 Hercules Max Life Up Cut Spiral 3/8"SH, 3/8"CD, 1-1/4"CL is designed for heavy-duty use, engineered to deliver maximum bit life in high wear applications. This router bit is for long production runs, especially when working with MDF and laminated materials, providing consistent and precise cuts. The up cut spiral design efficiently removes chips up and out of the cut, which is i for dado cuts and deep routing tasks where chip packing is a concern. Built like "Hercules," this solid carbide bit exceptional strength and durability, making it suitable for hand-held routers, router tables, and CNC machines. With a 3/8" cutting diameter, 3/8" shank, and 1-1/4" cutting length, it fits routers with a 3/8" collet and operates at speeds of 16,000-18,000 RPM, with a maximum of 24,000 RPM. This bit ensures smooth results thanks to its helix design and is engineered for extended life in demanding woodworking projects. Model Number: HU4125