Tool-flo 09638AC50F Threading Insert Carbide AC50F 4 Tpi

Product Description

The TOOL-FLO 09638AC50F is a carbide threading insert designed for cutting internal threads on API Rotary Shoulder Connection profiles. Manufactured to the V85 insert style in the Vee Bottom series, it features a 90-degree included angle and a 4 TPI internal pitch. The AC50F manufacturer grade and PVD coating process provide wear resistance suited to the demanding tolerances required in oilfield and energy-sector threading operations. This insert is installed by machinists and toolroom professionals using compatible boring bars or threading toolholders.

This insert is specified for internal threading applications on API Rotary Shoulder Connections, a standard common in downhole drilling tool manufacturing and oilfield equipment machining. The Vee Bottom series designation indicates the insert seat geometry, which must match the corresponding toolholder pocket. At insert size 85 with a thickness of 0.312 inches, it is suited for medium-to-large bore threading passes where API thread profile accuracy is critical.

Key Features

• Carbide substrate with PVD coating for extended tool life in API thread profiling
• AC50F manufacturer grade matched to threading applications requiring consistent edge performance
• V85 insert style, Vee Bottom series - seat geometry must match toolholder pocket
• 90-degree included angle for accurate API Rotary Shoulder Connection thread form
• 4 TPI internal pitch for large-diameter API rotary shoulder thread cutting
• Coated finish via PVD process for surface hardness and reduced built-up edge

Compatibility

Designed for use in V85 Vee Bottom series threading toolholders compatible with API Rotary Shoulder Connection internal threading operations. Toolholder pocket geometry must match the V85 insert style and seat configuration.

Installation Notes

Threading inserts of this type are installed by qualified machinists on CNC or manual lathes and boring machines. Always power down and lock out the machine before seating or replacing inserts. Confirm the toolholder pocket is clean and free of chips before seating the insert, as debris under the insert will affect thread profile accuracy. Handle carbide inserts with care to avoid chipping the cutting edge prior to use.