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Bushing Rods & Pin Wire: 10 PACK Multiple-use assorted wire for clock and watchmakers and repairers
It's knurled around the edge for extra grip
A (gents/medium) Two sizes of pyramidal dies
50mm Twist Drill
durable and impact resistant materials
Kern ORA 1GG Gemmology/Jewellery Refractometer Hermle 2214 Shaft Strike & Chime Pendulum Movement Bushing Rods & Pin Wire:Kern ORA 1GG Gemmology Jewellery Refractometer Details Need to measure the refractive index of jewellery? You need Kern's ORA 1GG. This specially designed analogue refractometer is made for use in jewellery gemmology studies and has a special refractive index range designed specifically for this application. Supplied as standard in a leather carrying bag. Kern ORA 1GG Jewellery Refractometer Key Features Refractive index measurement range from 1. 30