Specification Brand : QXNASU BulletPoint : Milling Machine Part J Head Quill Stop Knob B163 For Bridgeport Mill Part BulletPoint1 : 2PC Milling Machine Part- Clock (Quill) Spring 25mm wide R-8 Mill BulletPoint2 : Will fit most other 3#4# Taiwanese import mills. This is only the spring. BulletPoint3 : Your clock spring housing must have a slit for spring to fit. This clock spring will not fit if there is a pin in the housing. BulletPoint4 : The outside diameter is 1.73" (44mm) and initial fitting may be snug. BulletPoint5 : 25mm wide, R-8.The clock spring must stay closed (steel strapped) during installation. Please be careful. A sprung spring can cause damage. Wear all protection necessary. This spring is best if it is pressed into the housing. CareInstructions : Hand Wash Color : Sliver CompatibleDevices : Milling Machine ExternallyAssignedProductIdentifier : 7597538153481 ExternallyAssignedProductIdentifier1 : 0764769487655 ExternallyAssignedProductIdentifier2 : 764769487655 IncludedComponents : Includes 2 rollers ItemName : Milling Machine Part J Head Quill Stop Knob B163 For Bridgeport Mill Part ItemPackageDimensions_Height : 10 centimeters ItemPackageDimensions_Length : 27 centimeters ItemPackageDimensions_Width : 26 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : power-milling-machines LockType : Manual, Independent Manufacturer : QXNASU Material : Alloy Steel ModelName : Sorazt2a4spenqk ModelNumber : Sorazt2a4spenqk NumberOfBoxes : 1 NumberOfItems : 1 PartNumber : xichuang12A2102 Pattern : BT30 8000rpm PowerSourceType : Hand Powered ProductDescription : Milling Machine Part J Head Quill Stop Knob B163 For Bridgeport Mill Part ProductSiteLaunchDate : 2023-12-31T12:00:46.250Z RecommendedUsesForProduct : Creating animal feed pellets Size : 6MM Plate SpecificUsesForProduct : Grinding Style : BT30 Taper Spindle Unit SupplierDeclaredDgHzRegulation : not_applicable UnitCount : 1 UnspscCode : 27000000