Accupro 12277089 Square End Mill 0.08 in 4 Flute Carbide

Product Description

The ACCUPRO 12277089 is a solid carbide square end mill designed for precise milling operations in metal, composites, and other hard materials. Built from micrograin carbide, this 4-flute single-end tool runs at a 30-degree helix angle for efficient chip evacuation and smooth cutting performance. The mill measures 0.08 inches in diameter with a 0.12-inch length of cut and a 1.5-inch overall length. The bright uncoated finish suits general-purpose applications where coating is not required or where regrinding is anticipated. Center-cutting capability allows plunge entry. This tool is installed and used by machinists, tool-and-die makers, and CNC operators in production and job-shop environments.

This end mill is suited for light profiling, slotting, and finishing passes on small-feature geometries. The 0.125-inch shank diameter fits standard collet chucks and end mill holders commonly found on CNC machining centers and manual knee mills. Its compact diameter makes it well suited to fine-detail work, engraving-adjacent profiling, and tight-tolerance cavity work where larger tools cannot reach. Right-hand cut and right-hand flute direction are standard for conventional CNC setups.

Key Features

• Solid micrograin carbide construction for rigidity and wear resistance in demanding cuts
• 4-flute geometry improves surface finish and material removal rate versus 2-flute designs
• 30-degree helix angle promotes efficient chip evacuation and reduces cutting forces
• Center-cutting design allows direct plunge entry without pre-drilling
• Bright uncoated finish suitable for general-purpose machining and regrinding
• Right-hand cut and right-hand spiral flute direction for standard CNC spindle rotation

Compatibility

Designed as an OEM-style replacement or direct-use solid carbide end mill compatible with any standard 0.125-inch collet, end mill holder, or shrink-fit toolholder on CNC machining centers, manual mills, and multi-axis equipment.

Installation Notes

Installation is performed by a qualified machinist or CNC operator. Always power down and lock out the spindle before loading or unloading the tool. Seat the shank fully in the collet or holder and tighten to the toolholder manufacturer torque specification. Inspect the cutting edges under magnification before use to confirm the tool is free of chips or damage that could cause premature failure or workpiece defects.