Guhring No 201 25 Piece HSS 1.0 -13mm by 0.5mm Drill Set. Type N DIN 338. For drilling steel and cast steel, grey cast iron, spheroidal iron, sintered powder metal, German silver and graphite. 118° point angle. Supplied in a metal indexed case. Specifications • Diameter: 1.0mm - 13.0mm • Increasing By: 0.5mm • Pieces in Set: 25 • Optimal Suitability: Steel, High Alloyed Steel, Grey Cast Iron, Spheroidal Graphite Iron, Malleable Cast Iron • Limited Suitability: Aluminium, other Non Ferrous Metals • Tool Material: HSS • Surface: Bright, Steam Tempered • Cutting Direction: Right • Machining Depth: ~5xD • Standard: DIN338 • Type: N • Point Angle: 118° • Tolerance: h8 Contents • 1, 1.5, 2, 2.5, 3, 3.5, 4, 4.5, 5, 5.5, 6, 6.5, 7, 7.5, 8, 8.5, 9, 9.5, 10, 10.5, 11, 11.5, 12, 12.5, 13mm All Guhring drills are manufactured in Germany using quality German steel.