Accupro 12276829 Square End Mill 0.052 in 4 Flute Carbide

Product Description

The ACCUPRO 12276829 is a solid carbide square end mill designed for precision milling operations in metal and composite materials. It features a 0.052-inch cutting diameter with a 4-flute, right-hand spiral configuration and a 30-degree helix angle that promotes efficient chip evacuation and smooth cutting action. The bright, uncoated finish makes it suitable for use with cutting fluids in applications where coating could interfere with tolerances. At 1.5 inches overall length with a 1/8-inch shank, this is a small-diameter tool intended for fine detail work, slotting, and profiling in tight geometries. Micrograin carbide construction delivers the hardness and edge retention needed for demanding materials.

This end mill is suited for CNC machining centers and manual mills used in tool and die, mold making, prototype fabrication, and precision component production. The centercutting geometry allows direct plunge entry as well as conventional peripheral milling. The right-hand cutting direction is standard for most vertical and horizontal spindle setups. It is a single-end tool, meaning it is replaced rather than reground once the cutting edge is worn.

Key Features

• 0.052-inch cutting diameter with mill diameter tolerance of +0.0000 / -0.0010 inches for close-tolerance work
• 4-flute, right-hand spiral flutes at 30-degree helix for balanced chip load and surface finish
• Micrograin solid carbide construction for hardness and edge retention
• Centercutting design allows plunge milling without a pre-drilled pilot hole
• Bright/uncoated finish compatible with a wide range of cutting fluids and materials
• 1/8-inch shank diameter with tolerance of -0.0001 / -0.0003 inches for precise collet fit

Compatibility

Designed for use in standard ER or precision collet systems accepting a 1/8-inch shank. Suitable for CNC machining centers and manual mills running right-hand spindle rotation.

Installation Notes

Installation should be performed by a qualified machinist or CNC setup technician. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the collet to the recommended minimum insertion depth to prevent pullout under load. Verify runout with a dial indicator after tightening, as small-diameter carbide end mills are sensitive to concentricity errors that can cause premature breakage.