This listing is for a vintage Lempco Dual Spiral Expansion Reamer, Type AA, Size .730–.780, complete with its original heavy cardboard storage tube. The tube still retains the original yellow Lempco PRODUCTS label, identifying it as a precision expansion reamer manufactured in Bedford, Ohio. The reamer itself appears clean and free of rust, with smooth blades and functional adjustment threading.
Lempco industrial reamers were widely used in machine shops, automotive rebuilding, metal fabrication, and industrial repair throughout the mid-20th century. Their dual-spiral expansion design allowed fine-tuning to exact tolerances for precision hole sizing.
This piece is ideal for collectors of vintage machinist tools or buyers who need a functional adjustable reamer from a respected American manufacturer.
Lempco (Lempco Products, Inc. of Bedford, Ohio) was a well-known American producer of industrial cutting tools, reamers, and automotive rebuilding equipment from the early 1900s onward. Their adjustable and expansion reamers were widely used in engine shops for fitting valve guides, bushings, sleeves, and other precision components before CNC machining became standard.
Great for collectors of:
• Vintage machinist tools
• USA-made industrial equipment
• Automotive rebuilding tools
• Adjustable/expansion reamers
• Early to mid-20th-century shop equipment
• Reamer is clean with no visible rust
• Adjustment mechanism moves freely
• Original tube included, tube shows heavy wear and label wear from age
• Part No. 73AA visible on the label
• Size range .730–.780 handwritten on tube and printed on label
Please inspect photos for exact condition.
This description was created with the assistance of AI. Minor inaccuracies are possible. Please review photos and ask any questions before purchase.