We are professional in manufacturing machine tool accessories, with a history of twenty years. Kinds of revolving handles, ball knobs, handle sleeves, handle seats in various styles and different sizes can meet your requirement. Material Bakelite, steel, plastic Surfaced process Bakelite: black / red, glossy finish Steel: sand-blasted / chrome bright Plastic: matt black Assembly Brass, stainless steel or common plated steel Special purpose non-standard operating accessories areavailable upon request.