Size Information: The overall size of the deburring tool is 2.9 x 6.6 x 0.63cm / 1.14 x 2.60 x 0.25 inch; the inner diameter is 2.3cm / 0.91 inch. Features a 1/4 inch (6.35mm) quick-change hex shank. Product Materials: The deburring chamfer tool is made of cemented carbide for durability and reliability. It is resistant to breaking and deformation, offering practical and reliable performance. Easy to Operate: Identify bolts with burrs and use the deburring tool to remove them, resulting in smooth, burr-free bolts for a better user experience. Practicality: This hex shank deburring tool is suitable for use on stainless steel, wood, copper, aluminum, plastic, and other materials. Specification: Main Color: Black Material: ABS + Metal Product Size: 2.9 x 6.6 x 0.63cm / 1.14 x 2.60 x 0.25 inch Package Contents: 2 x Deburring External Chamfer Tool Note: The package includes only the items listed above. Other products are not included. Light reflection and differences in display screens may cause slight variations in color between the product image and the actual item. Measurement may vary by 1-3cm due to manual measuring.