Changzhou QT TOOLS

Solid Carbide Single Tooth Thread Mill (55° Tip) - For Hardened Steel & Deep Hole Threading

Description Package Information Inquiry

Products Function

ParameterSpecification
Tool TypeSingle Tooth (Single Point) Thread Mill
Tip Angle55 Degrees (For BSW, BSP, G Threads)
MaterialMicro-grain Solid Carbide
CoatingATNIS Multi-layer / AlCrN
Hardness RatingHRC 45° - 65° (Quenched Steel)
Flutes3 or 4 Blades (Depending on diameter)
CoolantAir Blow (Recommended for Hardened Steel) or Mist
Cutting DirectionRight Hand / Left Hand (Programmable)

  • 55° Profile Design: Specifically engineered for Whitworth (BSW), BSP, and G series pipe threads.

  • Hard Material Expert: Optimized for machining Quenched Steel (45°-65° HRC) and difficult-to-cut alloys.

  • Multi-Pitch Versatility: Single-tooth geometry allows one tool to cut various pitches (TPI) with the same 55° profile.

  • Premium Coating: ATNIS / AlCrN multi-layer coating provides exceptional heat resistance and wear protection.

  • Deep Hole Stability: Low cutting pressure design minimizes deflection, perfect for deep thread milling.


Specifications

G/PF/RC/PTPitchCutting Dia.Cutting LengthShank Dia.Overall LengthFlute
G1/16 G1/8 RC1/16 RC1/8P0.907D618LD650L3F
G1/4 G3/8 RC1/4 RC3/8P1.337D822LD860L3F
G1/2 G3/4 RC1/2 RC3/4P1.814D1030LD1075L4F
G1 G1/1/2 RC1 RC1-1/2P2.309D1238LD1275L4F


Product Description

Overview

Achieve superior thread quality in the toughest materials with our 55° Solid Carbide Single Tooth Thread Mill. Unlike standard 60° cutters, this tool is precision-ground with a 55-degree tip angle, making it the perfect solution for machining British Standard (Whitworth, BSW, BSP, G) threads in modern CNC applications.


Designed for Hardened Steel (45-65 HRC)

Machining threads in quenched steel is a challenge. Our cutter features a premium ATNIS / AlCrN multi-layer composite coating, which offers extreme thermal stability. This allows the tool to maintain its cutting edge even when generating high heat in materials up to 65 HRC, significantly extending tool life compared to standard uncoated or TiAlN coated tools.


Why Choose Single Tooth (Single Point)?

  • Versatility: A single tool can machine a wide range of thread pitches (TPI), reducing your tool inventory.

  • Low Cutting Force: The single-point contact reduces radial pressure, preventing tool breakage and tapering, especially in deep hole applications.

  • Chip Evacuation: The 3 or 4-flute design ensures ample space for chip removal, preventing clogging in deep threads.


Applications

Hydraulic components requiring BSP/G threads.

Aerospace and Automotive parts made of hardened steel.

Mold and Die making.


 FAQ 

Q: What is the difference between this 55° mill and a standard 60° mill?

A: Standard 60° mills are for Metric (M) and American UN threads. This 55° mill is specifically designed for British Standard Whitworth (BSW) and Pipe Threads (BSP/G). Using the wrong angle will result in a non-conforming thread profile.

Q: Can this tool cut different thread sizes?

A: Yes! Since it is a single-tooth cutter, you can use helical interpolation to cut any thread diameter and any pitch (TPI), as long as the thread profile requires a 55° angle.

Q: Is it suitable for blind holes?

A: Absolutely. The single-tooth design cuts to the bottom of the hole effectively, and the flute design helps evacuate chips upwards, making it ideal for both blind and through holes.


Clients Benefits:

1. More revenue: due to our big stocks, tools cost can be controlled. With our competitive price, we can help you to make even more revenue but with lower cost.

2. No quality complain: By control quality from raw material to production process and 100% examed before shipment, so we can help you to keep away from any clients complain for quality issue.

3. One stop shop service: we have variety of cnc milling tools, cnc router bits and cnc drilling tools. You do not need to buy everywhere and pay shipping cost everywhere.

4. Increase clients conversion rate: with our technical and market experience, we can help you to generate more customer with even higher conversion rate.

5. Fast feedback: we offer 24 hours online service, any questions from you or your clients will be replied immediately, your clients will be happy, then you will be happy.

6. Cutomized tools: Customized tools can be provided acccording to your drawing and your work piece.