Guhring No. 16 29 Piece HSCO 1/16 -1/2" By 1/64" straight shank twist drill bit Set. Type N DIN 338. Ideal for drilling steel, high alloyed steel, grey cast iron, spheroidal graphite iron and malleable cast iron. 118° point angle. Supplied in a case. All Guhring drills are manufactured in Germany using quality German steel. Specifications • Diameter: 1/16 -1/2" • Increasing By: 1/64" • Pieces in Set: 29 • Guhring Code No: 3.021 • Optimal Suitability: Steel, High Alloyed Steel, Grey Cast Iron, Spheroidal Graphite Iron, Malleable Cast Iron • Limited Suitability: Stainless Steel, Aluminium, other Non Ferrous Metals • Tool Material: HSCO • Surface: Steam Tempered • Cutting Direction: Right • Machining Depth: ~5xD • Standard: DIN338 • Type: N • Point Angle: 118° • Tolerance: h8 Contents • Diameters 1/16 -1/2" in 1/64" Increments (29 drill bits) • Case