4" (100mm) INSIDE SPRING CALIPER JEWELLERY WATCH MAKING CRAFT MODEL CALLIPPER.

4" OUTSIDE SPRING CALLIPER

SOLID STEEL CONSTRUCTION

BLACK POWDER COATED FINISH

MEASURES UPTO 100mm

PRECISION GROUND POINTS

STRONG , FLEXIBLE BOW SPRING

EASY ACCURATE ADJUSTMENT

KNURLED THUMBSCREW

USE FOR MODEL MAKING - CRAFT - HOBBY - WATCH - JEWELLERY APPLICATIONS