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Stone Size (mm): 4
Great for Mens And Womens Watches repair
35 x 195mm
00mm HSS High Speed Ste
Boric Acid Powder 1 kg Tub Weishi 1900 Stone Size (mm): 4A traditional favourite with Jobbing Repairer Jewellers and Silversmiths How to prepare and use Clean the piece as you would before soldering and assembling. Mix with 1 litre of methylated spirits and 150g of Boric acid in a glass or polyurethane container, with a lid. Depending on the size of the piece, cover it entirely by dipping or brushing on a fine coating. Heat all over with a torch to form white coloured skin; this creates a protective barrier