Specification Brand : ATOPLEE BulletPoint1 : 【Good Quality Material】The product is made of 65Mn spring steel, quenched and hardened, internally and externally finely ground, with high precision,high elasticity, tight clamping and stable cutting. BulletPoint2 : 【High Wear Resistance & High Precision】Precision: less than 0.015mm. The surface is ground and polished for high wear resistance and heat resistance, the bright outer surface fits better and ensures excellent precision. BulletPoint3 : 【Wide Application】When in use, it needs to be used together with ER tool holder, shank and extension rod nut. This product is widely used in CNC, milling machines, engraving machines, machining centers and other equipment. It is usually used for milling, boring, drilling, wire tapping and other operations. BulletPoint4 : 【Size】Length:17.7mm; Height:0.69'', Outside diameter: 0.45'' (11mm). BulletPoint5 : 【Package Included】2pcs CNC ER11 router collet. CompatibleDevices : Milling Machine CustomerPackageType : Standard Packaging ExternallyAssignedProductIdentifier1 : 781903209140 ExternallyAssignedProductIdentifier2 : 756557809046 ExternallyAssignedProductIdentifier3 : 0756557809046 ExternallyAssignedProductIdentifier4 : 0781903209140 ItemName : ATOPLEE ER11 Collet Set,1/8 inch and 1/4 inch Spring Collet Set for CNC Engraving Machine and Milling Lathe Tool ItemPackageDimensions_Height : 17.9 centimeters ItemPackageDimensions_Length : 3.3 centimeters ItemPackageDimensions_Width : 12.7 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : router-collets Manufacturer : ATOPLEE Material : 65MN ModelNumber : ER11 1/8"& ER11 1/4" NumberOfItems : 1 PartNumber : 14090050S01 ProductSiteLaunchDate : 2015-08-26T07:00:00.000Z Size : 1/4 inch SupplierDeclaredDgHzRegulation : not_applicable