Tool-flo 5101700AC50D Threading Insert 5 Tpi Api Buttress

Product Description

The TOOL-FLO 5101700AC50D is a solid carbide laydown threading insert designed for right-hand external API Buttress thread cutting at 5 TPI. Manufactured to the 22ER insert style and coated with AlTiN via a PVD process, this insert delivers high surface hardness and heat resistance during threading operations. The AC50D grade is engineered for demanding thread-turning applications where tool life and edge integrity are critical. With a 1/2-inch inscribed circle, it fits standard 22ER toolholders and is suited for machinists and CNC operators working in oil-country tubular goods (OCTG) and pipe fabrication environments.

This insert is used primarily in external threading of pipe and coupling stock conforming to API Buttress thread standards. Typical applications include threading operations on oil field casing, tubing, and line pipe ends where API Buttress profile accuracy is required. The right-hand cutting geometry and single cutting edge per side make it well-suited for precision thread-form passes on CNC lathes and turning centers in production or job-shop environments. Machinists working to API 5B thread specifications will find this insert a direct fit for those tolerance requirements.

Key Features

• 22ER insert style with 1/2-inch inscribed circle for compatibility with standard laydown threading toolholders
• Solid carbide construction in AC50D grade for durability in tough threading applications
• AlTiN coating applied via PVD process for improved heat resistance and extended tool life
• Right-hand external cutting geometry ground to API Buttress thread profile at 5 TPI
• Cutting edge to theoretical edge length of 0.0870 inches; face of insert to tip centerline of 0.0950 inches
• Single tooth per side for controlled thread-form engagement

Compatibility

Designed as an OEM-style threading insert for use in 22ER-style external threading toolholders on CNC lathes and turning centers performing API Buttress thread cuts.

Installation Notes

Installation is performed by qualified machinists or CNC tooling technicians. Power down and lock out the machine before seating or indexing the insert. Ensure the toolholder pocket and clamping surfaces are clean and free of chips before mounting. Follow the toolholder manufacturer torque specification for the clamping screw - do not over-torque, as this can fracture carbide.