This twist-knot wire wheel brush is designed for heavy-duty work and delivers aggressive stock removal on ferrous metals. The bristles are made from hardened steel wire, which gives a high level of durability and performance. The twist-knots are tight for a longer life and the twisted construction is perfect for quicker material removal in deburring and cleaning tasks. The wheel shape is designed to work perpendicular to the surface, making it ideal for smaller and tighter areas. Fitted with a non-slip 6.35mm hex shank. Compatible with most drill drivers and drills with a 13mm chuck.