Accupro 14788565 Square End Mill 4 Flute 5/16 Inch Carbide

Product Description

The ACCUPRO 14788565 is a 4-flute solid carbide square end mill designed for precise milling operations in metalworking and machining applications. With a 5/16 inch (0.3130 inch) mill diameter and a 1-3/8 inch length of cut, this centercutting end mill can plunge directly into workpiece material, making it suitable for slotting, profiling, and pocketing operations. The helical flute geometry with a 38 to 42 degree helix angle promotes efficient chip evacuation and smooth cutting action. Solid carbide construction provides rigidity and wear resistance compared to high-speed steel tooling. This end mill is intended for use by machinists, tool-and-die makers, and CNC machine operators.

This end mill is suited for use in vertical machining centers, CNC mills, and manual knee mills in job shop, production, and maintenance machining environments. Its 5/16 inch cylindrical shank fits standard ER collet chucks and end mill holders. The 3 inch overall length provides a compact, rigid setup appropriate for general-purpose milling. It is well matched to cutting ferrous and non-ferrous materials where a medium-diameter, 4-flute geometry is appropriate. No chipbreaker geometry is present, making it best suited for conventional slotting and peripheral milling cuts.

Key Features

• Centercutting design allows direct plunge entry into workpiece material
• 4 helical flutes with 38 to 42 degree helix angle for efficient chip removal
• Solid carbide construction for rigidity and extended tool life
• 5/16 inch cylindrical shank for compatibility with standard collet and end mill holders
• 1-3/8 inch length of cut supports slotting, profiling, and pocketing operations
• No chipbreaker, no extended reach — compact geometry for stable setups

Compatibility

Designed as a standard-shank solid carbide end mill with a 5/16 inch cylindrical shank, compatible with ER collet chucks, set-screw end mill holders, and milling machine spindles accepting 5/16 inch tooling.

Installation Notes

Installation should be performed by a qualified machinist following machine tool manufacturer guidelines. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the shank fully into the collet or holder to the recommended engagement depth and verify tool runout before beginning a cut. Follow applicable workplace safety standards for machine guarding and eye protection during setup and operation.