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