Osg 414-2756-BN Ball End Mill 0.2756 in 4 Flute Carbide

Product Description

The OSG 414-2756-BN is a solid carbide ball end mill designed for precision milling operations across a wide range of metalworking applications. It measures 0.2756 inches (7.00 mm) in diameter with a 0.4724 inch (12.00 mm) length of cut and a 51.00 mm overall length. The 4-flute, single-end design paired with a 30-degree medium helix angle supports both roughing and finishing passes. A straight-cylindrical 8.00 mm shank provides rigid tool holding in standard collet chucks and end mill holders. This tool is part of OSG Series 414BN and is engineered to consistent tolerances for reliable performance in production environments.

This end mill is suited for milling steel, stainless steel, cast iron, non-ferrous metals, superalloys, titanium, and hard materials. It is a standard-length tool with no extended reach and no coolant-through capability, making it appropriate for conventional flood or mist coolant setups. The right-hand cut and right-hand helical flute geometry are standard for vertical machining centers and CNC milling operations. It is a practical choice for shops running mixed-material work where a single versatile tool is needed across multiple setups.

Key Features

• 0.2756 inch (7.00 mm) ball end diameter with a 3.50 mm nose radius
• 4-flute helical geometry supports both roughing and finishing in a single tool
• 30-degree medium helix angle balances chip evacuation and cutting stability
• Solid carbide construction provides rigidity and wear resistance at elevated cutting speeds
• Straight-cylindrical 8.00 mm shank fits standard collet and end mill holders
• Right-hand cut, right-hand flute — compatible with standard CNC spindle rotation

Compatibility

Rated for use in steel, stainless steel, cast iron, non-ferrous metal, superalloys, titanium, and hard materials (ISO material codes P, M, K, N, S, H). Part of OSG Series 414BN.

Installation Notes

Installation and tool changes should be performed by a qualified machinist with the machine in a powered-off, locked-out state. Verify shank diameter matches the collet or holder bore before securing. Torque the tool holder to the machine spindle per the spindle manufacturer guidelines. Confirm runout with a dial indicator before commencing cuts to protect both the tool and the workpiece.