Harvey Tool manufactures several types of thread milling cutters for internal and external threading. Their single form cutters can machine any pitch thread in hardened steels up to 68Rc. Their multi-form cutters are designed for maximum chip ejection, deep threading applications, cutting National Pipe Taper threads, UN threads, and metric threads. The cutters are available in various coatings and styles to machine a wide range of thread types and sizes in various materials.

1. Threadmill Cutters
Harvey Tool’s Specialty Profiles
Products, Features, & Benefits

2. Thread Milling Cutters
Single Form
• Single thread form – can mill any pitch (including metric sizes)
• Cuts internal and external 60° UN threads
• Mills right hand and left hand threads
• Tip of included angle ground to a point

3. Thread Milling Cutters
Single Form – For Hardened Steels
New
Sizes
• Designed for Threading Hardened Steel 48-68Rc
• Single Thread Form Designed to Mill Common Pitch Sizes
• Tip of Included Angle Ground to a Flat for Increased Wear Resistance
• Large Rigid Core Diameter and Eccentric Relief for Improved Strength
• Mills Left Hand and Right Hand Threads
• Cuts Internal External 60° UN Threads
• h6 Tolerance for Shrink Fit Holders
• Latest Generation AlTiN Nano Coating Offers Superior Hardness and Heat Resistance

4. Thread Milling Cutters
Multi-Form – Coolant Through
New
Sizes
• Designed for maximum chip ejection in blind holes
• Coolant through
• Mills right hand and left hand 60° UN threads
• Able to cut larger threads of the same pitch
• Helical flutes

5. Thread Milling Cutters
Multi-Form – Long Flute
New
Sizes
• Designed for deep threaded applications
• Larger cutter diameter for maximum strength
• Due to increased cutting diameter, tools are designed to achieve 60% threads
• Cuts internal 60° UN threads only
• Mills right hand and left hand threads
• Able to cut larger threads of the same pitch
• Helical flutes

6. Thread Milling Cutters
Multi-Form – N.P.T. Threads
• Cuts internal and external 60° National Pipe Taper (N.P.T.) threads
• Mills right hand and left hand threads
• Able to cut larger threads of the same pitch
• Helical flutes

7. Thread Milling Cutters
Multi-Form – UN Threads
• AlTiN coating works great in steels up to 60Rc
• TiB2 coating is outstanding in aluminum
• Cuts internal and external 60° UN threads
• Mills right hand and left hand threads
• Able to cut larger threads of the same pitch
• Helical flutes

8. Thread Milling Cutters
Metric Multi-Form
• Cuts Internal and External 60° UN Threads
• Helical Flutes
• Fractional Shanks
• Mills Right Hand and Left Hand Threads
• Able to cut larger threads of the same pitch