Carmex Carbide Threading Insert – ACME – TiAlN Coated – 30I12ACME is a versatile, high-precision threading solution designed for machinists who routinely produce ACME and other common thread profiles. Built to endure demanding workholding and materials, it delivers reliable performance across workshops and small-batch production.

• Coating: TiAlN coating provides improved hardness and heat resistance for longer tool life in tough materials.
• Material: Solid carbide insert engineered for precise thread profiles and consistent finishes.
• Length options: Five lengths available, ranging from 12 mm to 40 mm to fit different tooling setups and depths.
• Edge configuration: Double-sided design with two cutting edges for most profiles, enabling more efficient tooling (exceptions apply to BSPT/NPT/NPTF/American Buttress/API RD).
• Internal vs external: For many thread profiles, the same insert can machine both internal and external threads; note exceptions for ISO/UN/NPSM/UNJ/Acme.
• Pitch range: Supports a wide range of pitches from 0.5 mm (32 TPI) to 6.0 mm (4 TPI), depending on the chosen length.

This insert is designed to reduce tool changes with a durable two-edge design, while the TiAlN coating helps maintain precision and surface finish under varied cutting conditions. The five available lengths let you tailor your setup for different workpieces and machine capabilities, enabling efficient, accurate threading of ACME and other standard profiles with dependable results.