Machinable materials : Aluminium. Cobalt-based alloys. Other non-ferrous metals. Refractory materials. Nickel-based alloys. Bronze. Titanium. Hard non-ferrous metal. Titanium alloys. Copper alloys. Soft non-ferrous metal. Brass. STAINLESS STEEL. Thermoplastics. Fibre-reinforced thermosetting plastics (glass and carbon fibres). Hardened and tempered steels with a hardness exceeding 1200 N/mm². Steels with a hardness exceeding 54 HRC. Steels, cast steel. Steels up to 1 200 N/mm². Cast steel. Application: Polishing. Dimensions : d 20mm Height 40mm