Whiteside 13-719 Screw Type Helix Mortise Cutter, 23/32 in. CD is designed to create precise hinge mortises with ease. This versatile helix mortise cutter can be used in both hand-held and machine routers, ing flexibility for various woodworking projects. Featuring a downshear cutting design, it ensures clean, splinter- cuts every time. The cutter includes a 1/4-28 internal thread size and requires either a 1/4" or 1/2" shank Helix Mortise Arbor (HMA14 or HMA12), which are sold separately. Equipped with a 2-wing carbide tipped cutter, it provides durability and sharpness for long-lasting performance. Manufactured by Whiteside Machine Company in Claremont, North Carolina, this tool combines quality and precision for professional results. The cutting diameter measures 23/32" (.719"), with a cutting length of 5/8" and an overall length of 7/8". Model Number: 13-719