Chelsea Filter Taps & Dies Edge-to-edge distortion-free viewing across the

Edge-to-edge distortion-free viewing across the full field

231S) Bur Type Thin Saw Edge Wheel Material Tungsten vanadium steel Diameter 2

but equally well suited for storing small beads

the apron measures 30" long by 21" deep

uniform abrasive size

Chelsea Filter Taps & Dies Edge-to-edge distortion-free viewing across theThe Chelsea filter is a compact gemological tool used to help identify certain red, blue, and green gemstones by observing characteristic color reactions under filtered light. It is especially useful for spotting imitations mixed into colored stone parcels and jewelry, and for differentiating emerald from common emerald look alikes. Features Assists in identifying select red, blue, and green gemstones Commonly used to detect simulants in colored stone