Faithfull FAIWBTC100 Conical Wire Brush 100mm M14 Bore 0.50mm Wire A conical twist knot high tensile steel wire circular brush. Conical Twist knot brushes are ideal for work in hard-to-reach places such as edges or corners and are suitable for the removal of slag rust scale or even dried cement. Maximum/min 12500. Diameter: 100 mm Thread: M14 x 2 Wire: 0.5 mm twist knot steel Conforms to ISO 9001. and DIN EN1083-1 and 2