Seco 17012957 Ball End Mill 0.5 in 4 Flute Cobalt Ticn

Product Description

The SECO 17012957 is a 4-flute cobalt ball end mill from the SPB540 series, designed for finishing operations in demanding machining environments. It features a 0.5-inch cutting diameter with a 0.25-inch nose radius and a 1-inch length of cut. The TiCN PVD coating reduces friction and extends tool life across a range of workpiece materials. The 30-degree medium helix angle promotes smooth chip evacuation during right-hand cutting. This tool is intended for use by machinists and tool-and-die professionals working on CNC mills and manual milling machines where precise ball-nose profiling is required.

The SPB540 series ball end mill is suited for finishing passes on steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Its short-length geometry and 0.5-inch Weldon flat shank provide rigid, secure tool holding in standard end mill holders. It is a single-end, spiral-flute design with no chipbreaker, no coolant-through provision, and no extended reach, making it best applied in close-clearance finishing setups where tool deflection must be minimized.

Key Features

• 0.5-inch ball nose diameter with 0.25-inch nose radius for accurate contour finishing
• 4-flute cobalt construction with TiCN PVD coating for extended tool life on hard and abrasive materials
• 30-degree medium helix angle promotes efficient chip flow in right-hand cutting
• Weldon flat shank provides positive drive and resists pull-out in high-feed applications
• Short-length geometry (3-inch OAL) maximizes rigidity during finishing cuts
• Compatible with steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium workpiece materials

Compatibility

Designed for use with standard 0.5-inch end mill holders and Weldon-style tool holders. Suitable for finishing operations on steel (P), stainless steel (M), cast iron (K), non-ferrous metals (N), and superalloys and titanium (S) per ISO material classification. No specific OEM machine compatibility is specified by the manufacturer for this tool.

Installation Notes

Installation should be performed by a qualified machinist following standard tooling setup procedures. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool. Secure the Weldon flat against the set screw in the tool holder to the shop standard torque specification for the holder size. Verify runout does not exceed the 0.001-inch TIR maximum before beginning the cut.