Design: HSS Co10, DIN 4964 or ISO 5421, hardened, annealed, true to size and dressed to size. The ends are perpendicular, straight and non-machined. Hardness approx. 63?68 HRC.
Tolerance for form A: Length: ± 2 mm Ø: h8
Application: Ground to be suitable for use as a form tool for hollowing, boring, engraving and copying in tool- and mould-making.