Product Description
The SECO 03084180 is a solid carbide corner radius end mill designed for high-performance material removal in demanding machining applications. It features a 1/2-inch cutting diameter, a 1-1/2-inch length of cut, and a 0.0600-inch corner radius that reduces stress concentrations at the cutting edge and extends tool life in hard materials. The 4-flute, single-end configuration with a variable helix and AlTiN (aluminum titanium nitride) PVD coating makes this tool well-suited for aggressive cuts in difficult-to-machine workpiece materials. It is used by machinists and CNC operators in production and job-shop environments.
This end mill is rated for primary use in stainless steel, superalloys, titanium, and hard materials (ISO material codes M, S, and H). The long-length flute geometry and high helix style support both roughing and finishing operations in a single tool. The Weldon flat shank provides positive engagement in standard toolholders, reducing pullout risk during heavy cuts. The STR440.2 series designation identifies this as part of SECO’s family of high-feed solid carbide end mills built for difficult alloy machining.
Key Features
- 0.0600-inch corner radius reduces edge chipping in hard and abrasive workpiece materials
- AlTiN PVD coating provides elevated heat resistance and surface hardness for dry or near-dry cutting
- Variable helix design reduces harmonic vibration and chatter during extended-reach cuts
- Centercutting geometry allows plunge entry without a pre-drilled hole
- Weldon flat shank ensures secure seating in compatible toolholders with set-screw retention
- Micrograin carbide substrate supports tight tolerances and sharp edge retention in superalloys and titanium
Compatibility
Designed for use with standard toolholders accepting a 1/2-inch Weldon flat shank. Rated for stainless steel, superalloys, titanium, and hard materials per ISO workpiece material codes M, S, and H. Part of the SECO STR440.2 series.
Installation Notes
Installation should be performed by a qualified machinist or CNC setup technician. Ensure the machine spindle is fully stopped and the toolholder is secured in a vise or fixture before inserting the end mill. Seat the Weldon flat against the set screw and torque to the toolholder manufacturer’s specification. Verify runout does not exceed the stated TIR maximum of 0.0005 inches before beginning a cut.
Technical Specifications
- Mill Diameter: 0.5000 inches
- Shank Diameter: 0.5000 inches
- Length of Cut: 1.5000 inches
- Overall Length: 4.0000 inches
- Corner Radius: 0.0600 inches
- Number of Flutes: 4
- Helix Style: High / Variable
- End Mill Material: Solid Carbide (Micrograin)
- Coating: AlTiN (PVD)
- Flute Direction: Right Hand
- Cutting Direction: Right Hand
- Shank Type: Weldon Flat
- End Type: Corner Radius
- Flute Type: Spiral
- Length Type: Long
- Centercutting: Yes
- Coolant Through: No
- Chipbreaker: No
- Material Removal Type: Roughing and Finishing
- Primary Workpiece Material: Stainless Steel, Superalloys and Titanium, Hard Material
- TIR Maximum: 0.0005 inches
- Mill Diameter Tolerance: -0.0020 / 0.0000 inches
- Shank Diameter Tolerance: -0.0001 / -0.0004 inches
- Corner Radius Tolerance: +/- 0.00100 inches
- Overall Length Tolerance: +/- 0.0600 inches
- Series: STR440.2
- Weight: 0.35 pounds
Standard Information
- Brand: SECO
- Manufacturer Part Number: 03084180
