RM-2Offset centerline caliper Please refer to the catalog for more specific dimensions and details. RM 2: Specifications (Unit: mm) Model Measuring Length Minimum reading Maximum permissible error Minimum hole diameter Mazimum hole diameter Weight A B C D E F G H I J K Pitch for upper side Pitch for lower side SMPE RM 2 15 25~150 20~150 0. 1 [Division of 29 mm into 10 equal parts] 0. 07 1 5 180g 261 70 6 0. 2 0. 2 6 6 3 40 16 53 RM 2 30 35~300 25~300 0.