Step drilled twist drill set, HSS titanium nitrided, 1-10 mm, 231 pieces Branded product Brio Sanded edges manufactured according to DIN 338 Twist drill: 20x Ø1.0 mm 20x Ø1.5 mm 20x Ø2.0 mm 20x Ø2.5 mm 20x Ø3.0 mm 11x Ø3.5 mm 11x Ø4.0 mm 11x Ø4.5 mm 11x Ø5,0 mm 11x Ø5.5 mm 11x Ø6,0 mm 11x Ø6.5 mm 11x Ø7.0 mm 11x Ø7.5 mm 11x Ø8.0 mm 5x Ø8.5 mm 5x Ø9,0 mm 5x Ø9.5 mm 5x Ø10.0 mm 1x step drill Ø4-22 mm Fully classified in a robust metal case Product for a long service life in daily workshop use