Accupro 12181767 Square End Mill 5/8 Inch 2 Flute Carbide

Product Description

The ACCUPRO 12181767 is a solid carbide square end mill designed for precision milling operations in metalworking and machining applications. It features a 5/8 inch cutting diameter, a 3 inch length of cut, and a 6 inch overall length, placing it in the extra-long category for extended-reach work. The two-flute, right-hand spiral configuration runs at a 40-degree helix angle, promoting efficient chip evacuation and smooth cutting action. Micrograin carbide construction delivers hardness and wear resistance suited to demanding cuts in ferrous and non-ferrous materials. The centercutting geometry allows plunge entry directly into the workpiece.

This end mill is suited for milling slots, pockets, and profiles where reach beyond standard length tooling is required. The uncoated finish makes it a straightforward choice for shops that regrind tooling or work with materials where coated tools offer no advantage. It is appropriate for use in CNC machining centers and manual knee mills with proper toolholding. The 5/8 inch shank diameter matches the cutting diameter, supporting use in standard collet chucks and end mill holders of that bore size.

Key Features

• Solid micrograin carbide construction for hardness and edge retention
• 40-degree helix angle promotes efficient chip evacuation
• Centercutting geometry allows direct plunge entry
• Extra-long 6 inch overall length with 3 inch length of cut for extended-reach applications
• Right-hand cut and right-hand flute spiral configuration
• Uncoated — compatible with regrind programs or uncoated-preferred applications

Compatibility

Designed as a direct-fit replacement for 5/8 inch shank square end mills in standard collet chucks, end mill holders, and hydraulic chucks accepting 5/8 inch bore toolholding.

Installation Notes

Installation should be performed by a qualified machinist following shop toolholding procedures. Ensure the machine spindle is fully stopped and the tool changer or spindle lock is engaged before mounting or removing the end mill. Verify runout with a dial indicator after seating in the holder, as excessive runout reduces tool life and surface finish quality. Follow the toolholder manufacturer minimum insertion depth guidelines to maintain secure clamping.