Interchangeable nylon heads and steel shaft. Face diameter 35mm. High-grip handle is resistant to oil and chemicals. Includes 3 x nylon anti-marking heads and 1 x metal-capped head. Interchangeable nylon heads and steel shaft. Face diameter 35mm. High-grip handle is resistant to oil and chemicals. Includes 3 x nylon anti-marking heads and 1 x metal-capped head.