Measuring Pin Material – Grade steel.Range – 0.5mm to 3mm with 40mm length & 3.01mm to 20mm with 50mm length.Pin set in step of 0.01mm, 0.02mm & 0.05mm are available. Customized step sets also accepted for manufacturing.Accuracy of dia.±1µm.Special length pins also manufactured.Hardness – HRC 60 ± 2 with sub-zero treatment.Material in carbide also available