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The VARGUS 20645 is an on-edge threading insert designed for cutting API Buttress thread profiles on pipe and coupling ends. Manufactured to the VKX grade, this insert features a TiN (titanium nitride) coating that extends tool life by reducing friction and resisting wear at the cutting edge. The TNMA insert style seats on-edge in compatible toolholders, presenting the cutting geometry at the correct approach angle for single-point threading operations. It is used on CNC lathes and manual threading setups by machinists and pipe-shop technicians working in oil and gas, downhole tool manufacturing, and related industries where API thread standards are required.
This insert is applied in threading operations that must conform to API Buttress specifications, commonly found on oilfield casing and tubing connections. It is suited for production environments where thread form accuracy and consistent tool life are critical. The insert is sold individually but requires a minimum order of 10 pieces, making it appropriate for shop stock in facilities with regular API Buttress threading demand. Typical workpiece materials include carbon steel and alloy steel pipe used in downhole and surface casing applications.
Designed for use in TNMA-style on-edge threading toolholders that accept size code 44 inserts and are configured for API Buttress thread forms.
Installation is performed by machinists or toolroom technicians on CNC or manual lathes. The machine spindle must be fully stopped and the toolholder secured before seating or replacing the insert. Use the correct torx or hex key to the toolholder manufacturer's specified clamping procedure to ensure the insert is fully seated on-edge without rocking. Verify thread form and pitch against API Buttress gauging requirements before committing to a production run.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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