Carmex Internal Right Hand NPT Taper Pipe Thread Turning Insert 11 mm / 18 TPI / 11 IR 18 NPT BMA

Internal Thread Turning Insert – NPT Taper Pipe 60°

The Carmex 11 IR 18 NPT BMA is a precision-engineered internal thread turning insert designed for cutting National Pipe Taper (NPT) threads with a 60° profile and a 18 TPI pitch. It forms the full NPT thread shape, including the taper, crest, and root geometry, ensuring leak-tight and dimensionally accurate pipe threads suitable for fluid and gas sealing applications.

Manufactured from premium BMA-grade carbide, this insert provides outstanding wear resistance, heat stability, and edge strength. It performs exceptionally well on stainless steels, hardened alloys, and other difficult-to-machine materials, maintaining consistent performance and excellent surface quality in precision internal threading tasks.

Key Features:

• Ordering Code: 11 IR 18 NPT BMA
• Thread Type: NPT (National Pipe Taper Thread – 60°)
• Profile: Full Form
• Insert Type: Internal
• Hand: Right Hand
• L: 11 mm
• I.C.: 1/4"
• Pitch: 18 TPI
• X: 0.03 mm
• Y: 0.04 mm
• Carbide Grade: BMA
• Applications: Internal Taper Pipe Thread Turning for NPT Standards
• Key Advantage: High-accuracy full-form insert for leak-tight NPT threading with excellent wear resistance on tough materials

Manufactured by Carmex Precision Tools Ltd.—a global leader in advanced threading technologies—this insert is part of a wide-ranging product line including Thread Turning Inserts, Mill Thread systems, and Solid Carbide Threadmills. Known for precision, durability, and performance, Carmex tools are trusted in demanding machining environments worldwide.