Product Description
The SECO 17003406 is a solid carbide corner radius end mill designed for high-performance milling in demanding materials including steel, stainless steel, superalloys, and titanium. The tool measures 7/32 inches (0.2188 inches) in diameter with a 3/8 inch length of cut and a 0.0200 inch corner radius. An AlTiN PVD coating improves heat resistance and tool life in difficult-to-machine alloys. Part of the Series S335, this single-end, centercutting tool runs in a right-hand cutting direction with a right-hand spiral flute orientation and a medium helix angle of 35 degrees. It is suited for both roughing and finishing operations and is installed in standard straight-bore toolholders.
This end mill is intended for use in CNC machining centers and milling machines where tight tolerances and edge integrity are required on steel, stainless steel, and superalloy workpieces. The short flute length and coarse pitch geometry make it well-suited for applications where chip evacuation and rigidity take priority. The 1/4 inch straight-cylindrical shank fits a wide range of collet chucks and end mill holders commonly used in production and job-shop environments. Machinists and tooling technicians working with exotic alloys or aerospace-grade materials will find the S335 geometry appropriate for those demands.
Key Features
- Solid carbide construction for rigidity and wear resistance in hard-material milling
- AlTiN PVD coating for elevated heat resistance and extended tool life in steel and superalloys
- 0.0200 inch corner radius reduces stress concentration and improves edge strength
- Three-flute, right-hand spiral design balances chip evacuation and cutting stability
- Centercutting capability allows direct plunge entry without pre-drilling
- Short flute length (3/8 inches LOC) provides maximum rigidity in tight-tolerance applications
Compatibility
Designed for use with standard straight-bore toolholders accepting a 1/4 inch cylindrical shank. Optimized for machining steel, stainless steel, superalloys, and titanium workpieces on CNC milling equipment.
Installation Notes
Installation should be performed by a qualified machinist or tooling technician. Ensure the toolholder bore and collet are clean and free of chips before seating the shank to maintain runout within the specified TIR maximum of 0.0005 inches. Verify machine spindle is fully stopped and locked out before changing tooling. Do not exceed the tool manufacturer recommended speeds and feeds for the target workpiece material and coating type.
Technical Specifications
- Mill Diameter: 7/32 inches (0.2188 inches)
- Number of Flutes: 3
- Length of Cut: 3/8 inches (0.3750 inches)
- Corner Radius: 0.0200 inches
- Overall Length: 2.0 inches
- Shank Diameter: 1/4 inches (0.2500 inches)
- Helix Angle: 35 degrees
- Coating: AlTiN (PVD)
- End Mill Material: Solid Carbide
- End Type: Corner Radius
- Flute Direction: Right Hand
- Cutting Direction: Right Hand
- Shank Type: Straight-Cylindrical
- Flute Type: Spiral
- Pitch: Coarse
- Length Type: Short
- Material Removal Type: Roughing and Finishing
- Centercutting: Yes
- Coolant Through: No
- Single or Double End: Single
- TIR Maximum: 0.0005 inches
- Corner Radius Tolerance: +0.00100 to -0.00100 inches
- Mill Diameter Tolerance: -0.0020 / 0.0000 inches
- Shank Diameter Tolerance: -0.0001 / -0.0004 inches
- Overall Length Tolerance: -0.0600 / +0.0600 inches
- Primary Workpiece Material: Steel, Stainless Steel, Superalloys and Titanium
- Series: S335
- Weight: 0.05 pounds
Standard Information
- Brand: SECO
- Manufacturer Part Number: 17003406
