Whiteside DH3557LH Left Hand Hinge Boring Bit - 10mm SH X 35mm CD is a high-quality Forstner style boring bit designed for precision and durability. This left-hand hinge boring bit features a centering point and two straight carbide cutters that create ly flat and smooth bottomed holes. Additionally, it has two carbide spurs to prevent tear out, ensuring clean and accurate cuts. With a 35mm diameter, this bit is i for installing European style cup hinges on cabinet doors. The shank includes a flat side for secure installation, providing stability during use. Please note that this bit is intended for use in boring machines with left-handed rotation only and is not suitable for drill presses or routers. The specifications include a 10mm shank size and a 35mm cutting diameter with an overall length of 2-3/16" (57mm). Manufactured by Whiteside Machine Company in Claremont, North Carolina, this bit combines precision engineering with reliable performance. Model Number: DH35-57LH