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Sharp and durable teeth of hole saws ensure a powerful and high efficient action
Supplied in box
Including sanding bands and sanding band connecting rod of different sizes
can work for 6 hours continuously
Size: 130 x 80 x 25mm
1.53ct Round Faceted Sapphire 6.8mm wax sheets Sharp and durable teeth ofSapphire is a variety of the mineral corundum, an aluminium oxide. It is typically blue but fancy coloured sapphires also occur. 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 finest sapphires in colour and clarity are located in Kashmir, Myanmar and Sri Lanka. Nowadays the main sources of sapphires are: