Accupro 12277094 Square End Mill 0.085 in 4 Flute Carbide

Product Description

The ACCUPRO 12277094 is a 4-flute solid carbide square end mill designed for precision milling in metalworking and machining applications. It features a 0.085-inch cutting diameter and a 0.127-inch length of cut, making it well suited for fine detail work, slotting, and profiling in tight geometries. The micrograin carbide construction provides rigidity and edge retention at small diameters. With a 30-degree helix angle and right-hand cutting and flute direction, it generates efficient chip evacuation during conventional milling operations. This tool is installed and operated by machinists and CNC setup techs working on vertical machining centers, CNC mills, and manual knee mills.

This end mill is intended for use in precision machining environments where small-diameter tooling is required. Typical applications include finishing passes on ferrous and non-ferrous metals, die work, and mold detail milling. The bright uncoated finish makes it suitable for non-ferrous materials such as aluminum, brass, and copper, as well as general-purpose steel applications where coated tooling is not required. The single-end design is standard for this diameter class and is used in collet-style and set-screw tool holders accepting a 0.125-inch shank.

Key Features

• 0.085-inch cutting diameter with a mill diameter tolerance of +0.0000 / -0.0010 inches for precise fitment
• Micrograin solid carbide construction for rigidity and extended edge life at small diameters
• 4-flute spiral design with 30-degree helix for efficient chip removal and smooth surface finish
• Center-cutting capability allows plunge entry as well as peripheral milling
• Bright uncoated finish suitable for non-ferrous metals and general-purpose milling
• Right-hand cut and right-hand flute direction; compatible with standard CNC and manual spindle rotation

Compatibility

Designed for use in collet chucks, ER-style collets, or set-screw holders accepting a 0.125-inch shank diameter. Part of the ACCUPRO ASQSC4-CC-30H series of small-diameter square end mills.

Installation Notes

Installation is performed by qualified machinists or CNC setup technicians. Ensure the spindle is fully stopped and the machine is powered down before changing tooling. Seat the shank fully into the holder to the recommended insertion depth and verify runout with a dial indicator before cutting. Do not exceed the tool manufacturer recommended speeds and feeds for the workpiece material and diameter class.