Specification Brand : NDNCZDHC BulletPoint1 : Great Material: Copper drill chuck collet set is crafted from copper material, ensuring wear resistance and durability over extended use. BulletPoint2 : Convenient Installation: Collet set features a knurled collet cap for easy installation and disassembly, enhancing user convenience. BulletPoint3 : Versatile Clamping Capability: Copper drill chuck collet set includes 10pcs collets with a clamping capability of 0.5 to 3.2mm, accommodating various tool shank diameters such as drill bits and grinding head bits. BulletPoint4 : Wide Compatibility: Drill collet is compatible with a wide range of rotary tools including mini power drills and electric grinders, ensuring versatility in usage scenarios. BulletPoint5 : Efficient Tool Handling: Drill chuck collet set is ideal for precision tasks requiring secure tool clamping, enhancing operational efficiency in mini power drill and electric grinder applications. Color : #011 ExternallyAssignedProductIdentifier : 7631390202670 ItemName : NDNCZDHC 11pcs 4 Jaw Copper Drill Chuck Collet Set Drill Collet with Clamping Capability Of 0.5-3.2mm and Collet Cap for Mini Power Drill and Electric Grinder ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 10 centimeters ItemPackageDimensions_Width : 7 centimeters ItemTypeKeyword : spot-welding-equipment Manufacturer : NDNCZDHC Material : Corundum ModelName : NDNCZDHC04bkuo7365 ModelNumber : NDNCZDHC04bkuo7365 PartNumber : NDNCZDHC04bkuo7365 ProductDescription : Material: Copper Size(mm): 0.5, 0.8, 1.0, 1.2, 1.5, 1.8, 2.0, 2.4, 3.0, 3.2 Package Weight: 25g (approx.)