Features: 1. Premium quality: Made of high quality brass and HSS, which has high hardness, wear resistant, durable for long time use. 2. Function: Can be used to remove material from the edge of the hole, cutting the disc material. 3. Precise positioning: The hinge drill allows precise placement of holes for mounting hinges and more. 4. Application: Widely used to wood and plastic. Perfect for hinges, drawer slides, handles, woodworking and more. 5. The drill bit head is three-pointed, which is sharper, and more durable and sharper than traditional ones. Notice: 1. Actual color may be slightly different from the image due to different monitor and light effect. Please allow 1-3mm deviation due to manual measurement. Specification: Material: High speed steelbrass Shank: 1/4, 5 mm Size: 6.35x98mm Package List: Choice 1: 1 x 5mm drill bit Choice 2: 1 x 1/4in drill bit Choice 3: 1 x 5mm drill bit 1 x 1/4in drill bit