Carmex 16ER3.0ISOP25C Threading Insert Solid Carbide

Product Description

The CARMEX 16ER3.0ISOP25C is a solid carbide laydown threading insert designed for external ISO thread turning operations. It cuts a right-hand thread profile at a 3.0 mm pitch with a 60-degree included angle, conforming to the ISO thread standard. The insert carries a P25C manufacturer grade with a C5 material grade rating and a PVD-applied TiN coating for wear resistance. With a 3/8 inch inscribed circle and a thickness of 0.146 inches, this insert seats in compatible 16ER-style toolholders. It is intended for use by machinists and CNC turning specialists in production and job-shop environments.

This insert is suited for external threading across a broad range of workpiece materials, including steel, stainless steel, cast iron, non-ferrous metals, aluminum, and heat-resistant alloys, reflecting its universal H, K, M, N, P, and S material group ratings. It is a strong fit for general-purpose threading operations on CNC lathes and manual turning centers where consistent thread form and insert life are priorities. Right-hand cutting geometry makes it appropriate for standard external thread applications in both high-volume and maintenance machining contexts.

Key Features

• Solid carbide substrate with PVD TiN coating for extended tool life
• P25C grade with C5 material rating suits a wide range of workpiece materials
• 3.0 mm pitch ISO external thread form with 60-degree included angle
• Right-hand cutting orientation for standard external threading
• 3/8 inch inscribed circle seats in 16ER-style toolholders
• Meets CE, ISO 13485:2016, ISO 14001:2015, and ISO 45001 standards

Compatibility

Designed for use in 16ER-style laydown threading toolholders for external ISO thread turning. Universal material group ratings H, K, M, N, P, and S indicate suitability across steel, stainless, cast iron, non-ferrous, aluminum, and superalloy workpieces.

Installation Notes

Installation should be performed by a qualified machinist following the toolholder manufacturer's seating and clamping specifications. Ensure the machine spindle is fully stopped and the turret or toolpost is locked before changing inserts. Use the correct torx or clamping key to secure the insert without overtightening the clamp screw. Verify thread pitch and insert orientation against the job setup before resuming cutting.