Accupro 12177250 Ball End Mill 0.4724 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12177250 is a single-end ball end mill designed for precise contour milling, 3D profiling, and finishing operations in ferrous and non-ferrous metals. The cutter measures 0.4724 inches (12 mm) in diameter with a length of cut of 0.8661 inches (22 mm) and an overall length of 5.118 inches (130 mm). Solid micrograin carbide construction provides rigidity and wear resistance at elevated cutting speeds. The AlTiN coating adds thermal hardness and oxidation resistance, extending tool life in high-temperature cutting environments. A 40-degree helix angle promotes efficient chip evacuation and smooth cutting action. This tool is installed and operated by machinists and CNC tooling professionals.

The 12177250 is suited for milling operations on machining centers and CNC mills where tight tolerances and surface finish quality are required. The extended reach design, with a reach length of 4.016 inches, accommodates deep-cavity work and profiling applications where standard-length tools cannot access the workpiece geometry. The 12 mm shank diameter fits standard ER collet systems and side-lock holders. Right-hand cutting and right-hand flute direction are standard for conventional CNC spindle rotation. Four flutes deliver a balance of chip clearance and surface finish capability across a range of materials.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• AlTiN coating for thermal resistance and extended tool life in ferrous materials
• 40-degree helix angle for efficient chip evacuation and reduced cutting forces
• Extended reach design with 4.016 inches of reach length for deep-cavity access
• Four-flute spiral geometry balances chip clearance and surface finish
• Mill diameter tolerance held to +0.0000 to -0.0025 inches for consistent fit and runout control

Compatibility

Designed as a direct-fit replacement or standard tooling selection for CNC machining centers and knee mills using 12 mm shank collet chucks or side-lock holders with right-hand spindle rotation.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Verify collet bore size matches the 12 mm shank before torquing the collet nut to holder specification. Inspect the shank and collet seating surfaces for debris or wear before each use to maintain runout within acceptable limits.