Hardened steel parallel end block sets with 1 tolerance classification type 4351

Design: High alloy steel, minimum hardness of 800 HV. Coefficient of linear expansion: (11.5 ± 1.0) x 10#h-6# K#h-1#. Maximum dimensions and shape stability due to careful artificial ageing. Wear-resistant and has very good adhesion properties when pushing.

Each gauge block is marked with an individual ID No.

Tolerance class 1: Most often-used standard in the measurement room for the inspection of gauges and for setting measuring instruments.