Description
The SECO 10115749 is a solid carbide corner radius end mill designed for demanding metal removal in both roughing and finishing operations. Part of the S638R series, it features a 0.5-inch diameter, six flutes with a variable pitch and 38-degree medium helix, and a 0.0313-inch corner radius. The HTA PVD coating extends tool life when cutting stainless steels and high-temperature alloys. Right-hand cutting and right-hand flute direction make it compatible with standard spindle setups. The centercutting geometry allows plunge entry without a pre-drilled pilot hole.
This end mill is built for machinists and tool-and-die professionals working in job shops, aerospace component production, and general precision machining. The short-length configuration with a 0.625-inch length of cut and 2.5-inch overall length provides rigidity in tight workholding setups. The variable pitch design reduces harmonic vibration during aggressive cuts in stainless steel and exotic alloys classified under primary workpiece material codes M and S. The straight cylindrical shank fits standard ER collet chucks and end mill holders with a 0.5-inch bore.
Key Features
- Solid carbide construction for high rigidity and dimensional stability
- HTA PVD coating rated for stainless steel and high-temperature alloy applications
- Six-flute variable pitch design reduces chatter and improves surface finish
- 0.0313-inch corner radius reduces stress concentration at the cutting edge
- Centercutting geometry enables direct plunge milling without pilot drilling
- TIR maximum of 0.0005 inches supports tight-tolerance finish work
Compatibility
Designed as an OEM-style replacement or direct application end mill for CNC machining centers using standard 0.5-inch straight cylindrical shank tool holders, compatible with primary workpiece materials classified as stainless steel and high-temperature alloys per the S638R series application guidelines.
Installation Notes
Installation should be performed by a qualified machinist following the machine tool manufacturer guidelines for tool runout and clamping torque. Always confirm spindle is fully stopped and locked out before inserting or removing the tool. Use a calibrated collet or end mill holder rated for 0.5-inch shanks and verify TIR at setup with a dial test indicator before first cut. Inspect the corner radius and cutting edges for chipping after high-load operations in abrasive workpiece materials.
Technical Specifications
- Mill Diameter: 0.5 inches
- Number of Flutes: 6
- Length of Cut: 0.625 inches
- Overall Length: 2.5 inches
- Shank Diameter: 0.5 inches
- Corner Radius: 0.0313 inches
- Helix Angle: 38 degrees
- Helix Style: Medium
- Pitch: Variable
- End Mill Material: Solid Carbide
- Coating: HTA (PVD)
- Flute Direction: Right Hand
- Cutting Direction: Right Hand
- Shank Type: Straight Cylindrical
- End Type: Corner Radius
- Centercutting: Yes
- Coolant Through: No
- Material Removal Type: Roughing and Finishing
- Mill Diameter Tolerance: -0.0020 / +0.0000 inches
- TIR Maximum: 0.0005 inches
- Primary Workpiece Material: Stainless Steel (M), High-Temperature Alloys (S)
- Series: S638R
- Weight: 0.24 pounds
Standard Information
- Brand: SECO
- Manufacturer Part Number: 10115749
