0.84ct Octagon Cut Bi-Colour Sapphire 5.5x4.6mm PROFESSIONAL SERIES DIGITAL COUNTERTOP / PORTABLE BALANCE

0.84ct Octagon Cut Bi-Colour Sapphire 5.5x4.6mm PROFESSIONAL SERIES DIGITAL COUNTERTOP / PORTABLE BALANCESapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur in orange, yellow, green, brown, purple, pink, black and colourless. Red and reddish pink coloured corundum is referred to as ruby. The variety in colours is due to trace amounts of elements such as iron, titanium, chromium, copper and magnesium. Mohs Scale of Hardness: 9 (out of 10). Sources: Mines that have yielded the

Centring adjusment

Hand Held Vice for gripping small components e

Bright blue-violet light

V slots between hub of balance staff and seat of roller

22mm (18swg) Weight including dispenser 30g

Hoxton London Men's Sterling Silver Stripe Two Way Striped Rotating Keyring Width: 11

60 Micron (Grit 270

The Definitive Extra Precision Gold Scale

Speed: around 10000RPM

Heavy-duty cast aluminium frame

Item Weight: 606g / 21

Hole saws in various size(10 kinds 6-30mm) to meet different needs