Accupro 12177072 Square End Mill 5/32 in 4 Flute Carbide

Product Description

The ACCUPRO 12177072 is a solid carbide square end mill designed for precision milling operations in metal, composites, and engineered materials. It has a 5/32 inch (0.1563 inch) cutting diameter, a 1/2 inch length of cut, and a 3/16 inch shank diameter, with a 2 inch overall length. The four-flute, right-hand spiral configuration paired with a 40-degree helix angle promotes efficient chip evacuation and a stable cut. Micrograin carbide construction provides the hardness and edge retention needed for demanding milling environments. Licensed machinists and CNC operators are the primary users of this tool.

This end mill suits general-purpose slot milling, peripheral milling, and profiling on CNC machining centers and manual knee mills. The centercutting geometry allows plunge entry directly into the workpiece. The bright uncoated finish makes it well suited for aluminum, brass, and other non-ferrous materials where coatings may cause adhesion issues, though it also performs in mild steels and tool steels when speeds and feeds are selected appropriately. The compact diameter makes it a practical choice for tight-tolerance features and narrow slots.

Key Features

• Solid micrograin carbide construction for hardness and edge retention
• 4-flute spiral geometry with 40-degree helix angle for efficient chip flow
• Centercutting design permits direct plunge entry into the workpiece
• Right-hand cut and right-hand flute for standard CNC and manual mill spindles
• Bright uncoated finish suited for non-ferrous and general-purpose applications
• Mill diameter tolerance of +0.001/-0.000 inch for consistent, repeatable results

Compatibility

Designed as a standard square end mill for use in CNC machining centers and manual milling machines that accept a 3/16 inch straight shank, compatible with ER collets, end mill holders, and other standard toolholding systems sized for that shank diameter.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the machine spindle is fully stopped and the power is locked out before changing tooling. Seat the shank fully and evenly in the collet or tool holder to the minimum recommended engagement depth before tightening to prevent runout. Verify speeds, feeds, and depth of cut against the material being machined before beginning operation.