Radial Bristle Brush BB e.g. Trim Material by Twisted Wire Cup Brush Steel wire, smooth and knotted For less flexible bristles – Weld Grinding, Entrostungs and clean work – Steel and Cast (smooth can also be used for wood) Steel wire, body wave, deep wave, kinky – for flexible brushes ; Easy to surface treatment and deburring- Steel, Cast Iron and Wood Stainless Steel Wire, corrugated smooth, knotted andAs steel wire, but- Stainless steel, aluminium, non-ferrous metals Brass wire, body wave, deep wave, kinky – for flexible brushes ; Easy to clean work and surface finish- Non-ferrous metals (particularly copper and copper alloys) and soft woods Nylon, smooth – for flexible brushes – resistant to weak acids and alkalis – Abrasion resistant- Scotch-Brite ()- Ceramic Cubitron () abrasive grain – Plastic Brush- Bore Size: 25.4 mm- With use on robot control, Bench Grinder, straight grinders or flexible waves- For cleaning, Entlacken, deburring, Überblenden on almost all materials Box Contents: 4 adaptors for reduce inner Essers on up to 13 mm.Image shows colour: yellow.