MARAMETER 57B-13M PORTABLE THICKNESS GAGES Using the basic design of the Model 57B-13 (Model 57B-13M — Metric) gage, the lower contact is PT-103, 1.10 mm / .043” diameter rod, mounted horizontally Upper contact is a flat chisel contact , in line with the rod By slipping tubular parts onto the lower contact, the gage can
The Mahr Marameter 57B series is a specialized portable thickness gage designed for precision measurement of wall thickness in tubular parts and wire insulation. The instrument utilizes a horizontal PT-103 lower contact rod, allowing for the easy placement of tubular components. The gage features a flat chisel upper contact aligned with the lower rod to ensure accurate, repeatable measurements.