Sandvik 266RKF‑16‑16 CoroThread 266 Indexable Boring Bar

📌 Product Overview

The Sandvik Coromant 266RKF‑16‑16 is a precision
CoroThread 266 indexable boring bar designed for advanced
internal thread turning and CNC boring tool applications. As a
specialized right‑hand thread turning toolholder, it delivers stable
performance, excellent metal cutting control, and high surface finish
quality for internal threads in demanding production environments.

✔ Key Advantages

• ✔ Precision engineering for internal thread turning
• ✔ Indexable boring bar compatible with CoroThread inserts
• ✔ Right‑hand cutting orientation for accurate thread geometry
• ✔ Metal cutting stability to ensure repeatable CNC performance
• ✔ Designed to reduce chatter and vibration in internal machining
• ✔ Suitable for steels, stainless steel and similar alloys

⚙ Recommended Materials

• ✔ Internal threading of stainless steel components
• ✔ Alloy steel CNC threading
• ✔ Precision boring of ferrous metals

✖ Not Recommended For

• ✖ External turning or parting operations
• ✖ Milling or drilling tool applications
• ✖ Manual lathe operations without CNC control

🔥 Performance Highlights

Built for precision internal CNC thread turning, the 266RKF‑16‑16
boring bar provides excellent chip control, consistent thread profile
quality, and low cutting forces. This indexable toolholder enhances
productivity and supports stable metal cutting processes with reliable
dimensional repeatability and extended tool life across series bore
machining applications.

🔁 Same Type Recommended Models

To extend your internal boring and thread turning toolkit, consider
these related CoroThread 266 series options:

• 266RKF‑25‑16 – Larger shank boring bar for deeper internal threads
• 266RKF‑20‑16 – Mid‑range internal thread boring toolholder
• 266RKF‑40‑16 – Extended length for longer overhangs and access
• 266RKF‑D16‑3 – Alternative length configuration for specific setups

These related models maintain the same threaded tooling design
principles and support diverse CNC internal threading requirements.

🔩 Compatible Categories

Complete your CNC setup with matching inserts and accessories in our

Turning Tools
and

Tool Holder

categories.

📞 Technical Confirmation

If you are unsure whether the 266RKF‑16‑16 indexable
internal thread turning boring bar fits your machine, material, or
thread profile requirements, please contact our technical support for
cutting parameter guidance and toolholder matching assistance.

Image Notice: Product images are for reference only. Actual product
appearance may vary depending on production batch and tooling configuration.