About this article Ideal for punching fine holes in mild steel, aluminum, copper, brass, plexiglass, wood and laminates. Two drill bits for true round and auto-shape holes as you deburr. Triplane shank shape for a secure hold in the chuck without slipping. Cobalt coated to reduce friction and work cooler. Package dimensions: 15 x 10.5 x 4.2 cm (L. x W. x H). Product Information Technical description Package dimensions 15.24 x 10.92 x 4.32 cm; 40 grams Color Brown Material High-speed steel Shape Square Quantity of items 5 Batteries included? No Battery(ies) / Battery(ies) required No Weight 0.04 Kilograms Product description Product description: This system replaces 50 individual drill bits. Two-bit design gives you faster, smoother cutting. 3-sided (tri-plane) shank to prevent slipping in drill chuck. fresher cut and more sweet. Self-starting: no need for a pilot hole. Cobalt coated to reduce friction and work cooler. The large parts have 3 sides and the small parts have a hexagonal shank to prevent slippage in the chuck. Automatic deburring of holes as you drill. Durable M2 real high speed steel. Includes padded aluminum protective case. Package dimensions: 15 x 10.5 x 4.2 cm (L. x W. x H). Weight: 450g. Dimensions: 1.0.47 to 1.27 cm with 6 steps (0.47 cm, 0.63 cm, 0.79 cm, 0.95 cm, 1.11 cm, 1.27 cm). 2.0.31 to 1.27cm with 13 steps (0.31cm, 0.39cm, 0.47cm, 0.55cm, 0.63cm, 0.71cm, 0.79cm, 0.87cm, 0.95cm, 1.03cm, 1.11cm, 1.19cm, 1.27cm). 3.0.63-1.90cm with 9 steps (0.63cm, 0.79cm, 0.95cm, 1.11cm, 1.27cm, 1.42cm, 1.58cm, 1.74cm, 1.90cm). 4.0.63 to 3.49 cm with 10 steps (0.63 cm, 0.95 cm, 1.27 cm, 1.59 cm, 1.90 cm, 2.22 cm, 2.54 cm, 2.86cm, 3.18cm, 3.49cm). 5.0.47 to 2.22 cm with 12 steps (0.63 cm, 0.79 cm, 0.95 cm, 1.11 cm, 1.27 cm, 1.42 cm, 1.58 cm, 1.74cm, 1.90cm, 2.06cm, 2.22cm). Included: 1 x 1/4 - 1 3/8 drill with steps. 1 x 3/16 - 7/8 drill with steps. 1 x 1/4 - 3/4 drill with steps. 1 x 1/8 - 1/2 drill with steps. 1 x 3/16 - 1/2 drill with steps. 1 aluminum box. Diameter of drill bits: 1/4 - 1 3/8 x 9mm, 3/16 - 7/8 x 9mm, 1/4 - 3/4 x 9mm, 1/8 - 1/2 x 6mm, 3/ 16 - 1/2 x 6mm.