Grinders -Air Grinder Chuck Highlights Generic Brand Air Grinder Chuck Description: Chuck size: 6mm, 3mm, for standard 3mm and 6mm bits. High quality carbide material, good flexibility and wear resistance. Suitable for all kinds of grinding machine clamp grinding heads. Ideal for grinding and polishing metal components such as cylinder heads, valve ports and small industrial components. High precise clamping force, good gripping stability. Specification: Material: Carbide Alloy Color: Black Pick up Chuck: 3mm/6mm Size: Approx. 27x10cm / 10.6x3.9 inch Package includes: 1 Piece Air Die Grinder Collect (2 Pack) Note: Please allow 1-3mm error due to manual measurement, make sure you do not mind before ordering. bid. Due to the different monitor and light effect, the actual color may be slightly different from the picture color.