- Shank Type: Cylindrical
- Surface Treatment: C6
- Thread Size: 1/4-28
- Thread Type: UN
- Cutter Diameter Inch: 0.197in
- Overall Length: 2.5in, 2-1/2 in
- Number of Flutes: 3
- Shank Diameter: 0.25in, 1/4 in
- Material: Solid Carbide
- Country of Origin: US
- Cutting Diameter: 0.197 in
- Included Angle: 60°
- Length of Cut: 0.1071 in, 0.1071in
- Manufacturer Name: Harvey Tool
- Maximum Depth of Thread: 0.5in
- Neck Diameter: 0.151in
- Type: Tri-Form
- Application
- Item Features
Designed for threading in hardened steels and difficult-to-machine materials
- Left-hand-cut, left-hand spiral design for climb milling from top to bottom of right-hand threads
- Three forms and helical design reduces tool pressure and deflection resulting in accurate threads
- Cuts internal 60 deg UN threads only
- Able to cut larger threads of the same pitch
- Latest generation AlTiN Nano coating offers superior hardness and heat resistance
- Applicable Materials are Cast Iron, Steel, Stainless Steel, Hardened Alloys
- Neck Diameter 0.1510 in
- Included Angle 60