GRAVERS, SCORPERS, SCRAPERS & DEBURRING


Jadeite Filter Jadeite Filter


Prism spectroscope (based on dispersion) is a tool for examining which parts of white light are absorbed by a gemstone (as well as by other materials).


See Website full product information. Code


Description E9517 Prism Spectroscope


Prism Spectroscope with Focus Option


Prism Spectroscope with Focus Option


Used for differentiating between natural and dyed green and lavender jade.


• Very effective tool in the use of separating red, blue and green stone from others that might look similar in comparison.


• Extremely useful in detecting certain dyes treated on gemstones.


See Website full product information. Code


E33835


Description Jadeite Filter


London Dichroscope London Dichroscope


UOM Price £24.50


EACH


UOM Price £49.95


EACH


• Lightweight & portable • Requires 1 x AA batteries, reference MN15006 (not included)


Code U40268 Description


Ultra Violet Long Wave Pen, A*F Swiss


UOM Price EACH £29.95


GRAVERS, SCORPERS, SCRAPERS & DEBURRING


Tools for engraving, setting, chasing, sculpting, etc are inexpensive compared with the cost of essential tooling to practice other crafts. One is able to buy the essentials for a lifetime of manufacturing, leaving only the expense of replenishing consumables.


At Cousins Material House Ltd we distribute a full range of Swiss Vallorbe gravers and accessories for a wide variety of modern day workshop applications for manufacturing, repairing, craftwork, hobbyists and work in the 


Used to test less pure transparent (opaque) gem materials including rough and broken pieces, fashioned pieces, strings of beads, gems set in jewellery, ornaments and carvings.


The focus option allows you to focus the lines better.


Prism spectroscope (based on dispersion) is a tool for examining which parts of white light are absorbed by a gemstone (as well as by other materials).


See Website full product information. Code


Description


Incorporates two polarizing sheets mounted at right angles to each other allowing the London Dichroscope necessity to samples rays from two different areas of the same stone.


Examples are views of a Tourmaline/ruby gemstone with a London Dichroscope with a back light. With the same ray of light entering the gemstone both sides 


See Website full product information. Code


Description E9519 London Dichroscope


Prism Spectroscope Prism Spectroscope


 of diamond


• Used to judge the colour grading & positioning of stones


• Distinguishes stones according to the distinctive colour emitted by the long wave UV light


• Applies to gems such as natural ruby from Myanmar, opal, amber synthetic ruby, spinel and sapphire, YAG etc


Used to test less pure transparent (opaque) gem materials including rough and broken pieces, fashioned pieces, strings of beads, gems set in jewellery, ornaments and carvings.


• Many natural diamonds emit a distinctive glowing blue colour under UV light and other coloured diamonds give a particular light


 • Ø20mm • 100mm long


902 COUSINS TRADE SUPPLIER


UOM Price £33.95


EACH E33808


Prism Spectroscope with Focus Option


UV Long Wave Pen UOM Price EACH £89.95


With various industries demanding the highest quality tools, Vallorbe gravers have been the  industry experts all over the world on millions of pieces there is very little the Vallorbe Graver has not touched.


Gravers come in various shapes, sizes and metal qualities.


Metal types: • Tools Steel (WS) the standard graver, keeps a tough sharp edge maintaining hours of production usage.


• High Speed Steel (HSS) this tougher graver keeps a sharp edge for a considerably longer time than normal tool steel gravers (WS).


More graver info: Gravers can be used on a whole variety of metals or materials including gold, silver, platinum, palladium, titanium, copper, brass, bronze, pewter, gilding metal, steel, ivory, bone, wood, plastics and aluminium.


All gravers have makings from the manufacturer which indicates the size and metal quality. HSS gravers always have a yellow paint mark on the tang of the graver;  handle. Additionally measure the width of the graver and compare with the graver chart below, to determine the size.


Graver handles come in different shapes and sizes, it is advisable to replace the handle with the graver to ensure optimum grip between handle and graver.


Preparing a graver: A graver tool has to be of a certain length to suit the hand of the user. Held in working position, the end of the tool should project half to three-quarters of an inch beyond the thumb.


A graver, when brought, will be too long and will have to be shortened. If only a small reduction is required a small piece can be  The tang is not as hard as the rest of the tool  to a point so that it can be easily inserted into the handle.


If a graver has to be shortened considerably, the end will have to be ground off by using a double bench grinder (code B33154) and care must be taken not to over-heat the tool


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