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AMETHYST A-Grade Oval 12x10
AMETHYST A-Grade Oval 12x10
Tumbled Amethyst chevron size L 20mm+ (Per stone)
Tumbled Amethyst chevron size L 20mm+ (Per stone)
OPAL TRIPLET Oval 10x8
OPAL TRIPLET Oval 10x8
Cabochon 25x18 MALACHITE
Cabochon 25x18 MALACHITE
Ameritool 6 inch Universal Grinder/Polisher 220v
Ameritool 6 inch Universal Grinder/Polisher 220v
Cabochon 10mm Round AMAZONITE (Peru)
Cabochon 10mm Round AMAZONITE (Peru)
Cabochon 16mm LABRADORITE
Cabochon 16mm LABRADORITE
Tumbled Gem Mix Average 20mm+ 5kg Bag
Tumbled Gem Mix Average 20mm+ 5kg Bag
Chequerboard Cabochon Gold Tigereye 8mm round
Chequerboard Cabochon Gold Tigereye 8mm round
Cabochon 25x18 Oval PHOSPHOSIDERITE (Chile)
Cabochon 25x18 Oval PHOSPHOSIDERITE (Chile)

Saws

Introduction To Diamond Saws
Ref: IntroSaws


These units are all designed specifically for sawing and would normally be used in conjunction with a lapping or grinding machine.

A Diamond saw-blade consists of microscopic diamond particles embedded in the rim of a thin metal disc. Unlike a saw for wood or metal, a Diamond blade does not have 'teeth' and it has a fine grinding action rather than a cutting action. Because of its construction, it is possible - to most peoples surprise - to hold a finger against the rim whilst the blade is running and the flesh will be cleaned but not cut !

Quite a lot of heat is generated during the sawing process and for this reason a coolant has to be applied at the point of cut to prevent blade damage and stone cracking. Water is adequate as a coolant on saws of 6" diameter or less but this would evaporate too easily on a deeper cut so larger blades are used with a special coolant ('MetPrep Cool') as shown below.

Click here for Instructions on use of Diamond Saws

Our stock range, of around 10,000 items, covers hobby and professional requirements for craft/workshop/therapy use. E & O E. Copyright: Manchester Minerals Ltd. April 2017