Specification Brand : CNCCANEN BulletPoint1 : Pitch: 0.2inch/5mm Length : 500mm Ballscrew:C7 standard BulletPoint2 : With BK12/BF12 Standard End Machining BulletPoint3 : Smooth and ultra quiet bearings for rails. BulletPoint4 : Compact design and easy to mount and dismount. BulletPoint5 : The material is made by the high quality carbon steel and case hardened。 Color : other DriveSystem : Internal Hex ExteriorFinish : Steel ExternallyAssignedProductIdentifier : 8414740816272 ExternallyAssignedProductIdentifier1 : 0190459849487 ExternallyAssignedProductIdentifier2 : 190459849487 ItemName : CNCCANEN SFU1605-500mm Ballscrew RM1605 Ball Screws Ending Machined 1Set BK/BF12 and DSG16H Nut Housing for CNC Route 3D Printer DIY ItemPackageDimensions_Height : 5 centimeters ItemPackageDimensions_Length : 1.6 centimeters ItemPackageDimensions_Width : 3.3 centimeters ItemPackageQuantity : 1 ItemShape : Round ItemTypeKeyword : ball-screws Manufacturer : CNCCANEN Material : Metal ModelNumber : RM1605-500mm/19.7inch NumberOfItems : 1 PartNumber : 1 ProductDescription : Feature: High speed feed and Micro-feed supply High service life time due to low friction; low operation noise No stick-slip effect,heats up less,reduced drive power required High static and dynamic stiffness Fused with shiny surface matching with high precision More resistant to wear and tear, greatly extending the life cycle of the ball screw life increased several times.