TiN Coating CNC Threading Mills NPTF Threading Cutters 1/4 NPT

Introduction:

This TiN-coated solid carbide thread mill is precision-engineered for machining 1/4"-18 NPTF (National Pipe Taper Fuel) threads - the dry-seal variant of NPT used in critical fluid/gas systems. The gold-colored Titanium Nitride (TiN) coating enhances wear resistance while maintaining sharp cutting edges for superior thread quality.

Key Features:

Thread Standard: 1/4"-18 NPTF (ANSI B1.20.3)

Material: Micro-grain carbide substrate

Coating: 2-3μm TiN layer (HV 2300+)

Flute Design:

• 3-4 flutes (optimized for steel/iron)

• 30° helix angle for smooth chip flow

Dimensional Accuracy:

• Complies with ASME B94.19

• ±0.01mm runout tolerance

Shank Options:

• 6mm/8mm/3/8" straight shank

• Weldon flat available

Advantages:

For NPTF Applications:

• Maintains tight root/crest tolerances required for fuel/oil systems

• Prevents galling in stainless steel fittings

• Outperforms HSS taps by 3-5x life in 4140 steel

TiN Coating Benefits:

• Reduces friction coefficient by 40% vs uncoated

• Withstands 600°C intermittent heat

• Visible wear indication (coating discoloration)

Typical Applications:

• • • • Hydraulic manifold blocks

      • Compressed air systems

      • Fuel injection components

      • API 6A wellhead equipment

Detailed Pictures:

Our workshop:

Promotion policy:

To help you experience our premium products, we’re excited to offer the following exclusive promotions for first-time buyers:

1.Free Test Samples

Get free samples (total value ≤ $20 USD) when you cover the international shipping cost.

Perfect for evaluating our product quality and performance risk-free.

2.$50 USD Discount on First Order

New customers can enjoy a $50 discount on the first order of $500 or more.

A great way to start our partnership with extra value!

Other products:

FAQ:

1. Are you a manufacturer or trading company?

We are a professional manufacturer of carbide tools which established in 2017.

2. Which CNC grinding machine do you use?

All of our carbide tools are produced by imported WALTER grinding machines.

3. Which shipping method do you usually use?

We usually send goods by express like FedEx, UPS, DHL, TNT, EMS, ETC.

We also can send products to your shipping agent in China.

  CHANGZHOU AMG PRECISION TOOL MANUFACTURING CO., LTD. is a leading manufacturer and solution provider specializing in high-performance carbide cutting tools for precision CNC machining applications. With a strong commitment to innovation and quality, we design and produce an extensive range of standard and custom cutting tools, including carbide drill bits, end mills, reamers, and complex non-standard forming tools tailored to meet the most demanding machining challenges.