“Bottle Boring Tools” – Built to Cut What Others Can’t

Not all bores are straight. Some curve, swell, or reverse direction—like a bottle. These internal bores aren’t just tricky—they’re impossible with off-the-shelf tooling. When profiles balloon, taper, or reverse mid-bore, you’re not boring anymore—you’re bottle boring. At JPT, we build the tools that make those parts possible using our innovative bottle boring tools.

What is Bottle Boring?

Bottle boring tools are a type of internal boring tool designed to machine complex internal profiles, especially those with undercuts, curved or “bottle-shaped” cavities. They’re often used in high-precision applications where traditional boring tools can’t reach or conform to the shape needed.

These features are often found in:

  • Automotive: Machining of connecting rods, transmission parts, or other cast/forged parts with internal pockets that have variable diameters or bulging geometries.
  • Truck and Heavy Equipment: Internal passageways, undercuts, grooves and multiple bore diameters.
  • Aerospace: Structural components with weight-reducing internal cavities.
  • Medical: Complex orthopedic implant bores.
  • Die/Mold: Internal contouring of forms or cavities.
  • Bottle Industry: Bottle boring tools are essential here for shaping intricate bottle-like cavities.

Your Print or Ours?

Whether you supply the drawing or need us to design from a component model, JPT can engineer and build the right tool—fast, including our renowned bottle boring tools.

  • Working from legacy tooling and worn parts?
  • Reverse-engineering undocumented geometry?
  • Need design support?

We’ve done it all.

Design Matters. So Does Performance.
Our bottle boring solutions are:

  • Engineered for chip control and coolant flow
  • Optimized for rigidity and reach
  • Ground with custom profiles for unique contours
  • Tested and proven before delivery

Your Print or Ours

Build to Print or Let JPT Design and Manufacture to Perform.
When complexity goes internal, don’t settle for modifying catalog tooling. We’ll meet you at the print—or design the print with you. Bottle boring tools are our specialty, and that’s what we do.

Ready to tackle your next bore?
Let’s talk tooling.

About Joint Production Technology (JPT)

Joint Production Technology is a U.S.-based manufacturer specializing in precision motion-actuated tooling, including bottle boring tools, designed and built to customer specification. As a behind-the-scenes partner to Tier 1 and OEM production lines, JPT provides custom cutting tools and engineered solutions for some of the most demanding machining environments in the world.

Industries We Serve

✔    Automotive
✔    Heavy Truck & Off-Highway OEMs
✔    Tier 1-2 Parts Suppliers (Transmissions, Axles, Brakes, etc.)
✔    Defense & Aerospace Machining
✔    Agriculture & Forestry Machinery
✔    Oil/Gas & Mining Equipment Fabricators

To learn more, visit www.jptonline.com or contact us directly.

Joint Production Technology, JPT designs and manufactures special cutting tools.
Joint Production Technology, JPT designs and manufactures special cutting tools, including Boring bars, Turning, Milling Cutters, Actuating and Motion tooling for back boring, I.D. or O.D. Grooving, facing, taper machining and more.

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  • Why Choose JPT

    50+ Years Engineering Excellence – in Tooling & Component Manufacturing
    Backed by decades of experience, JPT delivers proven precision tooling solutions engineered for demanding machining applications.

    20+ Countries w/ Active Clients & Installations
    JPT supports manufacturers worldwide, delivering tooling solutions across global production environments.

    Millions of Components & Tools Delivered Annually
    From prototype to high-volume production, JPT tooling is built to perform consistently across large-scale manufacturing runs.

    ISO 9001:2015 Certified & Aerospace-Compliant Facility – Built for Quality, Certified to Perform
    Every process follows ISO 9001:2015 Certified standards, ensuring repeatable quality and precision across critical applications.

    Custom-Engineered Solutions
    Each tool is designed to meet exact specifications, solving complex machining challenges with precision and efficiency.

    Confidentiality & Supporting Solutions – Trusted by Tier 1 suppliers & OEMs
    JPT operates as a trusted partner behind the scenes, supporting Tier 1 suppliers and OEM production lines with proprietary solutions.

    Low-Volume Part Production – Ideal for prototyping, spares, and specialty defense projects
    Flexible production capabilities support everything from prototype development to specialized low-volume applications.

    Application-Specific Engineering & Tool Design – Engineered for your exact part geometry
    Every solution is engineered around your part geometry to optimize accuracy, cycle time, and performance.

    Advanced Tool Life Optimization – More uptime, fewer changeovers.
    Optimized tool design and materials extend tool life, reduce wear, and maximize uptime in production environments.

    Made in the USA – Built with pride, precision, and speed.
    Manufactured in the U.S., JPT tooling combines precision craftsmanship with fast, reliable delivery.

    Custom & Standard – Tailored solutions for your needs, ranging from custom indexable cutting tools to standard designs.
    From fully custom tooling to standard solutions, JPT offers a broad range of options to match your manufacturing needs.

    Fast Turnaround Times – Minimize downtime & maximize productivity.
    Streamlined engineering and manufacturing processes help reduce lead times and keep production moving.

    Have a new project or tooling challenge? Let’s talk. Our team is ready to help you find the most cost-effective solution for your specific application.

    The JPT Way

    Joint Production Technology (JPT) specializes in precision cutting tools and tooling solutions for mid to high-volume production. We transform your manufacturing challenges into engineered solutions through advanced tooling technology and innovative design.

    More than a supplier, JPT is your collaborative partner in production efficiency. We analyze your processes, engineer custom cutting tool solutions, and deliver results that boost productivity and reduce costs—from prototype tooling to full-scale production runs.

    Experience “The JPT Way” – Let’s optimize your production together!