Oster #502 Pipe Master Portable Threader | 3/8" - 2" Capacity | Revolving Head

Oster #502 Pipe Master Portable Pipe & Bolt Threader

Revolving Die Head System | Portable Stand | Work-Ready Condition

The Oster Model 502 Pipe Master is a specialized threading powerhouse designed for applications where the workpiece cannot be rotated. Unlike standard threaders, the 502 features a revolving die head, allowing you to thread long, heavy, or non-straight pipe with precision and safety. This specific unit, serial number GM4813, is a field-proven machine known for its rugged "Made in USA" construction and reliability in industrial maintenance and fabrication environments.

Key Features

• Revolving Head Design: The die head rotates around the stationary pipe, making it the ideal solution for threading bent conduit, large assemblies, or pipe already partially installed.
• Dual Tooling Capacity: Efficiently handles both pipe (3/8" to 2") and bolt threading, providing a versatile 2-in-1 solution for mechanical shops.
• Integrated Oiling System: Features a built-in reservoir and pump to ensure constant lubrication at the cutting surface, resulting in cleaner threads and longer die life.
• High-Torque Performance: Powered by a robust 1/2 HP motor and heavy-duty gear train designed for sustained professional use.
• Portable Job-Site Stand: Mounted on a signature wheeled carriage, allowing the ~300 lb machine to be easily positioned exactly where the work is located.
• Fast-Acting Vise: Features a heavy-duty front vise that securely grips the pipe to prevent slippage during high-torque threading operations.
• Includes Various Size Die Sets

Technical Specifications

• Pipe Capacity: 3/8" to 2" NPT
• Bolt Capacity: 1/4" to 1-1/2"
• Serial Number: GM4813
• Year of Manufacture: 1968
• Motor: 1/2 HP, 115V, 6A
• Spindle Speed: 16 - 30 RPM
• Thread Standard: NPT (Right Hand)
• Overall Weight: Approx. 300 lbs (excluding stand)