Product Description
The SECO 10268263 is a 4-flute solid carbide square end mill designed for precision milling in demanding metalworking applications. With a mill diameter of 0.0625 inches (1/16 inch) and a SIRON-A coating, it delivers wear resistance and heat management in high-speed cutting operations. The micrograin carbide substrate provides edge integrity at small diameters. The 30-degree right-hand helical flute geometry promotes efficient chip evacuation and smooth cutting action. This tool is intended for use by machinists and CNC operators working in job shops, tool rooms, and production environments where tight tolerances and difficult materials are common.
This end mill is suited for slotting, profiling, and peripheral milling in steel, stainless steel, cast iron, and high-temperature alloys (ISO material codes P, M, K, S). The long-length configuration with a 0.2500-inch reach length makes it appropriate for applications requiring extended tool projection beyond the shank. It is a single-end, centercutting tool, allowing plunge entry as well as lateral cutting. The straight cylindrical shank diameter of 0.1250 inches (1/8 inch) fits standard collet and end mill holder tooling systems.
Key Features
- Solid micrograin carbide construction for rigidity and edge retention at small diameters
- SIRON-A coating provides oxidation resistance and reduces built-up edge in ferrous materials
- 4-flute, right-hand helical design at 30 degrees for efficient chip flow and surface finish
- Centercutting geometry enables direct plunge entry without pre-drilled pilot holes
- Long-length series (Series C5141) with 0.2500-inch reach for extended-reach milling
- Mill diameter tolerance of -0.0005/+0.0005 inches and TIR maximum of 0.0005 inches for precision fitment
Compatibility
Designed for use in standard 1/8-inch straight-cylindrical collet chucks and end mill holders conforming to ANSI B94.19 shank diameter tolerances. Primary workpiece materials include steel, stainless steel, cast iron, and high-temperature alloys.
Installation Notes
Installation and tool changes should be performed by a qualified machinist with the spindle fully stopped and the machine in a locked-out state per applicable machine guarding and lockout/tagout procedures. Ensure the collet and holder bore are clean and free of debris before seating the shank. Do not exceed the tool manufacturer’s recommended speeds and feeds for the workpiece material and coating type. Inspect the cutting edges for chipping or wear before each use, as small-diameter carbide tools are susceptible to fracture under excessive radial load.
Technical Specifications
- Mill Diameter: 0.0625 inches (1/16 inch)
- Mill Diameter Tolerance: -0.0005/+0.0005 inches
- Number of Flutes: 4
- End Mill Material: Solid Carbide, Micrograin Grade
- Coating/Finish: SIRON-A
- Length of Cut: 0.2500 inches (1/4 inch)
- Reach Length: 0.2500 inches (1/4 inch)
- Shank Diameter: 0.1250 inches (1/8 inch)
- Shank Diameter Tolerance: ANSI B94.19
- Neck Diameter: 0.0675 inches
- Overall Length: 1.5000 inches (1-1/2 inches)
- Overall Length Tolerance: NAS 986
- TIR Maximum: 0.0005 inches
- Helix Angle: 30 degrees
- Flute Type: Helical
- Cutting Direction: Right Hand
- Flute Direction: Right Hand
- Shank Type: Straight Cylindrical
- Single or Double End: Single
- Centercutting: Yes
- Extended Reach: No
- Coolant Through: No
- Variable Helix: No
- Variable Index: No
- Chipbreaker: No
- Length Type: Long
- Series: C5141
- Primary Workpiece Materials: Steel, Stainless Steel, Cast Iron, High-Temp Alloy
- System of Measurement: Fractional Inch
- Weight: 0.02 pounds
Standard Information
- Brand: SECO
- Manufacturer Part Number: 10268263
