Accupro 12276828 Square End Mill 0.051 in 4 Flute Carbide

Product Description

The ACCUPRO 12276828 is a solid carbide square end mill designed for precise milling operations in ferrous and non-ferrous materials. Built from micrograin carbide, this single-end tool features a 0.051-inch cutting diameter, a 0.153-inch length of cut, and a 30-degree helix angle. The four-flute, right-hand spiral geometry promotes efficient chip evacuation while maintaining surface finish quality. The bright, uncoated finish makes it a straightforward choice for general-purpose milling where specialty coatings are not required. Machinists and tool-and-die professionals will find this tool well-suited for fine detail work in light to medium stock-removal applications.

This end mill is intended for use in CNC machining centers and manual milling setups where a small-diameter, short-cut-length tool is needed. The 0.125-inch shank diameter fits standard collets and end mill holders commonly found in production and job-shop environments. Its centercutting capability allows direct plunge entry, expanding its utility in slotting, profiling, and pocket-milling operations.

Key Features

• Micrograin solid carbide construction for rigidity and wear resistance in precision milling
• 4-flute, right-hand spiral flute design for efficient chip flow and improved finish
• 30-degree helix angle balances cutting forces across a range of materials
• Centercutting design supports plunge, slot, and pocket operations
• Bright/uncoated finish suitable for general-purpose applications
• Single-end configuration with a 0.125-inch shank for compatibility with standard toolholders

Compatibility

Designed as an OEM-style replacement or direct addition for setups requiring a 0.051-inch diameter, 4-flute solid carbide square end mill with a 0.125-inch shank in standard ER collet or end mill holder systems.

Installation Notes

Installation should be performed by a qualified machinist following the machine tool manufacturer's toolholder torque and runout specifications. Ensure the machine spindle is fully stopped and locked out before changing tooling. Use a properly sized collet or end mill holder to secure the 0.125-inch shank with adequate engagement length. Verify runout at the cutting diameter before commencing any operation, as small-diameter carbide tools are sensitive to excessive runout and may fracture.