Steel Wool Grade 0000 Ultra Fine 1kg - Liberon 126934, Liberon Steel Wool Grade 0000 Ultra Fine 1kg. Steel Wool Grade 0000 is a flexible, ultra-fine steel wool used to cut back between coats of varnish, paint or oil finishes. It is ideal for polishing and cleaning delicate surfaces, including metals such as bronze, copper, chrome, stainless steel and aluminium, or with soapy water to clean and polish porcelain, marble and glass without marking. Liberon 126934 Steel Wool Grade 0000 Ultra Fine 1kg