In a practical storage box, right, cylindrical. Length 100 mm, sizes 0.5 - 3.0 mm. Ideal for drilling deep holes in models!Ø 0.5 / 0.6 / 0.7 / 0.8 / 0.9 / 1.0 / 1.1 / 1.2 / 1.3 mmØ 1.4 / 1.5 / 1.6 / 1.7 / 1.8 / 1.9 / 2.0 / 2.5 / 3.0 mm