Hertel H08702573 Threading Insert 16ER 60 Degree Solid Carbide

Product Description

The HERTEL H08702573 is a solid carbide laydown threading insert designed for right-hand external threading operations on CNC lathes and manual threading setups. Built to the 16ER insert style, it covers a partial profile 60-degree thread form and handles a threads-per-inch range of 14 to 8 TPI, equivalent to a metric pitch range of 1.75 to 3.00 mm. The insert carries a TiC/TiN multilayer coating for improved wear resistance and surface finish on common ferrous and non-ferrous workpiece materials. With a 0 degree relief angle, this is a true laydown geometry suited for tangential-style threading toolholders. Licensed machinists, CNC operators, and tool-and-die technicians are the primary users.

This insert is intended for external thread cutting in turning center and lathe applications, both production and job-shop environments. The 60-degree partial profile geometry makes it suitable for cutting Unified (UN), ISO metric, and other standard 60-degree thread forms across the supported pitch range without requiring a dedicated insert for each pitch. The 3/8-inch inscribed circle and 0.146-inch thickness conform to standard 16ER toolholder pockets, making toolholder compatibility straightforward in most shops already running 16-series inserts.

Key Features

• Solid carbide substrate with TiC/TiN coating for extended tool life on steel and cast iron
• 60-degree partial profile form covers multiple standard thread families with a single insert
• 14 to 8 TPI range (1.75 to 3.00 mm pitch) accommodates common fastener and pipe thread pitches
• Right-hand external cut geometry for standard OD threading passes
• 0 degree relief angle — true laydown style for use in 16ER-designated toolholders
• 3/8-inch inscribed circle and 0.146-inch thickness for direct drop-in fit in 16ER pockets

Compatibility

Designed for use in 16ER-style laydown threading toolholders. The 3/8-inch inscribed circle and 0.146-inch thickness conform to the standard 16ER pocket specification. Confirm toolholder designation before ordering.

Installation Notes

Insert seating and clamping should be performed with the machine in a locked-out, de-energized state following applicable machine-specific lockout/tagout procedures. Seat the insert fully in the pocket and torque the clamping screw to the toolholder manufacturer's specification — do not estimate torque by feel. Inspect the insert pocket for chips or debris before seating; a contaminated pocket will cause insert rock and accelerate edge failure. Threading passes should begin at programmed feed rates appropriate to the workpiece material and pitch — verify CNC thread-cycle parameters before the first cut.