Description: C3 Micro-grain Tungsten Carbide Cutters Useing for handmaking a drawer or other woodworking. Sharp edge,high hardness,accurate positioning,high precision,smooth cutting,impact resistance,high toughness. Enable woodworkers to drill holes without passing through the material when a clean and precise bottom to a hole. Suitable For: MDF, solid wood, MDF, particle board, plywood, wooden door frames,wooden window frames, cabinets and boxes, etc. Specification: Material: Carbide Color: Yellow; Green Size: Approx. N1(1/2*1-3/8mm): Length: 58mm/2.28inch; Hole Diamter: 35mm/1.38inch; Handle Diameter: 12mm/0.47inch N2(1/4*1-3/8mm): Length: 48mm/1.89inch; Hole Diamter: 32mm/1.26inch; Handle Diameter: 6mm/0.24inch N3(1/2*2mm): Length: 70mm/2.76inch; Hole Diamter: 50mm/1.97inch; Handle Diameter: 12mm/0.47inch N4(1/4*1-1/2mm): Length: 50mm/1.97inch; Hole Diamter: 35mm/1.38inch; Handle Diameter: 6mm/0.24inch N5(1/4*2mm): Length: 58mm/2.28inch; Hole Diamter: 50mm/1.97inch; Handle Diameter: 6mm/0.24inch N6(1/2*2-3/4mm): Length: 76mm/2.99inch; Hole Diamter: 70mm/2.76inch; Handle Diameter: 12mm/0.47inch Package Includes: 1 piece Lock Miter Router Bit Note: Pls allow an error of 1-3mm due to the difference of manual measurement.