ug gauge, thread plug gauges, inside micrometers, standard bar, and measuring concentric, thickness, length of parts.

Hardened tool steel, heat treated, precision grinding, and surface coating rust resistant.

Easy to operate, by simply moving concentric slide to set distance and to lock position, then proceed to measuring or calibration.

Full set includes wooden case, operational manual, quality warranty, and JCC calibration report comply with ISO 9001 measuring traceability & ISO/IEC 17025 accreditation.

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