Carmex 16ER12ACMEP25C Threading Insert 12 Tpi 3/8 in Ic

Product Description

The CARMEX 16ER12ACMEP25C is a solid carbide laydown threading insert designed for right-hand external Acme thread cutting at 12 threads per inch (TPI). Built to the 16 ER insert style, it carries a P25C manufacturer grade with a C5 material grade, making it well-suited for general-purpose threading operations on a range of workpiece materials. The TiN coating is applied via PVD process, providing a hard, wear-resistant surface layer that extends tool life during production threading. With a 3/8-inch inscribed circle and a thickness of 0.146 inches, this insert fits standard 16 ER toolholders used in CNC and manual turning centers.

This insert is intended for machinists and tooling specialists performing external Acme thread forms on lathes and turning centers in manufacturing, job shop, and maintenance machining environments. The Acme thread profile is commonly used in power transmission applications such as lead screws, jacks, and linear actuators. The right-hand orientation suits standard threading passes on conventional setups. This insert is sold individually with a minimum order quantity of 10 pieces.

Key Features

• Solid carbide construction at P25C grade for reliable tool life in threading operations
• TiN coating via PVD process for improved wear resistance and surface hardness
• 12 TPI Acme thread form for power transmission thread cutting applications
• Right-hand external thread orientation for standard lathe threading setups
• 3/8-inch inscribed circle fits standard 16 ER toolholders
• 0.146-inch insert thickness for proper seating in compatible insert pockets

Compatibility

Designed for use in standard 16 ER threading toolholders compatible with laydown-style inserts. Verify toolholder pocket geometry and insert seating specifications before installation.

Installation Notes

Insert installation and replacement should be performed by a qualified machinist or tooling technician with the machine fully powered down and in a locked-out state. Seat the insert firmly and evenly in the toolholder pocket and torque the clamping screw according to the toolholder manufacturer's specifications. Inspect the insert pocket for chips, wear, or damage before seating a new insert. Do not exceed recommended cutting parameters for the insert grade and workpiece material combination.