Whiteside Spiral Up / Downcut Bit, 3/8 in. SH x 3/8 in. CD x 1 in. CL is a precision router bit designed for superior performance when working with double-sided laminates and veneers. Known as a 2 + 2 Compression bit, it features a unique combination of up and down cut spirals that effectively eliminate chipping, ensuring clean and smooth edges. The bit includes an up cut end i for mortising tasks, while its double-fluted spiral profile delivers the smoothest cuts possible. Crafted from solid carbide, this bit durability and long-lasting sharpness. Manufactured by Whiteside Machine Company in Claremont, North Carolina, it is built to meet professional woodworking standards. Specifications include a 3/8 inch shank size, 3/8 inch cutting diameter, 1 inch cutting length, and an overall length of 2-1/2 inches. Model Number: UD4102M