Whiteside LD4100 LH Spiral Down Cut Bit, 3/8 in. SH is designed for precision and smooth cutting with its left hand spiral down cut action that minimizes chipping and splintering. This router bit is i for applications where chip is not an issue, making it for deep through slots or shallow finish work such as inlays, laminates, and veneers. Its spiral shape provides a shearing action that ensures extra smooth cuts regardless of the grain direction. Crafted from solid carbide and featuring a double-fluted design, this bit durability and high performance. Please note, this bit is intended for use only in left hand (reverse rotation) routers. Manufactured by Whiteside Machine Company in Claremont, North Carolina, it meets high standards for quality and precision. Model Number: LD4100