0.58ct Round Faceted Sapphire 5.1mm Bergeon 30409B Crown Winder Ø5 to 7mm

0.58ct Round Faceted Sapphire 5.1mm Bergeon 30409B Crown Winder Ø5 to 7mmSapphire 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

10 Reamers: Ø1

075 x 220 x 6

Refractive power 36dpt (24 and 12 DPT each lens)

Crown Depth 3

Overall length: 240mm

T - Shaped

18 x 540 x 16mm (Swiza 48 (Alarm))

8s(over 60RPM)

Size: 125 * 10mm

With this DIY clock kit

For tool C6047

which makes it much easier to clamp wires