Boric Acid Powder 1 kg Tub Darkfield Loupe Steel Ruler (Bergeon 2819-08-C)

Steel Ruler (Bergeon 2819-08-C)

These dies will also fit any of our universal case back tools listed below using adaptor C0318

Lined and Calibrated Shaft A-Z

Laser mode: up to 25 feet (about 7620mm)

Ø3mm blade

Boric Acid Powder 1 kg Tub Darkfield Loupe Steel Ruler (Bergeon 2819-08-C)A 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