Whiteside Spiral Up / Downcut Bit, 3/8 in. SH x 3/8 in. CD x 1-1/4 in. CL is a high-quality router bit designed to deliver exceptional performance when working with double-sided laminates and veneers. Known as a 3 + 3 Compression bit, it features a unique combination of up and down cut spirals that effectively eliminate chipping during trimming. The bit includes a short up cut end flute i for mortising tasks, providing a down shear action to the top edge during shallow cuts for a cleaner finish. Its triple-fluted spiral profile ensures ultra-smooth cuts with solid carbide construction for durability and precision. Made by Whiteside Machine Company in Claremont, North Carolina, this bit reliable craftsmanship and superior cutting results. Model Number: UD4123M