Suitable for professionals and auto enthusiasts, this 16mm pocket-sized Battery Post and Terminal Cleaner boasts damage-resistant stainless steel bristles that won't flatten upon application. This promotes better electrical contact, removing corrosive build up more effectively. The top brush scours battery terminals; the bottom brush tackles the battery posts and can be accessed by removing the cap and twisting. A comfortable handle grip means you can work for prolonged periods while remaining in control. Cleaning terminals inside and outside couldn't be easier with this latest entry to the Draper range. Internal Wire Brush Diameter: 16mm, External Wire Brush Size: 79 x 38.5mm, Wire Thickness: 0.27mm, Wire Length: 18.5mm, Nett Weight: 0.058kg