Hertel H05766902 Threading Insert 18 Tpi Nptf Solid Carbide

Product Description

The HERTEL H05766902 is a laydown threading insert designed for cutting external NPTF threads in demanding machining applications. Built from solid carbide and finished with a TiC/TiN multilayer coating, this insert delivers wear resistance and thermal stability during threading operations on pipe and fitting profiles. It operates at 18 threads per inch and follows the NPTF thread standard, making it a precise choice for producing leak-free tapered pipe thread forms. The insert seats in a laydown orientation and is manufactured to the 16ER style. It weighs approximately 0.123 pounds per piece and is sold individually with a minimum order quantity of 10 units.

This insert is suited for use on CNC lathes and turning centers performing external NPTF threading passes on ferrous and non-ferrous workpieces. Typical applications include threading pipe ends, fittings, and valve bodies where tapered pipe thread geometry is required. The right-hand cutting configuration matches standard spindle rotation threading cycles. Machinists and toolroom technicians working in production or maintenance environments will find this insert well-matched to tight-tolerance pipe thread work.

Key Features

• Solid carbide substrate for rigidity and edge retention in interrupted and continuous threading cuts
• TiC/TiN dual-layer coating reduces friction and extends tool life at elevated cutting speeds
• 18 TPI NPTF thread form produces tapered pipe threads conforming to the NPTF standard
• Right-hand external cutting geometry compatible with standard CNC threading cycles
• 16ER insert style with a 3/8-inch inscribed circle and 0.1460-inch thickness for consistent laydown seating
• 0-degree relief angle provides full-form thread profile support throughout the cut

Compatibility

Designed as a 16ER-style laydown threading insert for use in toolholders accepting the 16ER insert geometry. Specific toolholder compatibility should be verified against the holder manufacturer's insert specification chart prior to installation.

Installation Notes

Insert seating and clamping should be performed by a qualified machinist following the toolholder manufacturer's torque specifications for the clamping screw. Ensure the machine spindle is fully stopped and the tool turret is in a safe index position before changing inserts. Inspect the insert pocket and clamping surfaces for chips or debris before seating the new insert. Verify thread form accuracy with a calibrated NPTF thread gauge after the first test pass.