Whiteside Dovetail Bit, 1/2 in. SH x 7/8 in. LD x 7 deg. is a high-quality router bit specifically designed for stair tread construction. This left-hand dovetail bit features two solid carbide flutes, ensuring durability and precision in your woodworking projects. Made by Whiteside Machine Company in Claremont, North Carolina, it is intended for use exclusively with left-hand (reverse rotation) routers. The bit specifications include a 1/2 inch shank size, 7/8 inch large diameter, and a 7-degree cutting angle, making it an excellent choice for creating precise dovetail joints with ease. Model Number: D7-875LH