Accupro 12183177 Square End Mill 1 in 4 Flute Solid Carbide

Product Description

The ACCUPRO 12183177 is a solid carbide square end mill designed for precision milling in demanding machining environments. Built from micrograin carbide and coated with AlTiN (aluminum titanium nitride), it handles high-heat cutting operations where tool life and edge integrity matter. The 1 inch cutting diameter pairs with a 3 inch length of cut and a 6 inch overall length, giving machinists extended reach for deep-pocket and long-reach applications. The 40-degree helix angle promotes efficient chip evacuation and reduces cutting forces across a wide range of materials. This tool is installed and operated by CNC machinists and tool-and-die professionals working in production or job-shop environments.

This end mill suits ferrous and non-ferrous milling operations where high surface speeds and tool longevity are priorities. The AlTiN coating performs well in dry or minimal-lubrication cutting conditions, particularly in hardened steels, stainless steels, cast iron, and high-temp alloys. The extra-long length type and centercutting capability allow for plunge entry as well as conventional and climb milling passes. Right-hand cut and right-hand spiral flute geometry matches standard CNC spindle rotation on vertical and horizontal machining centers.

Key Features

• 1 inch mill diameter with mill diameter tolerance of +0.000 / -0.002 inches for close-tolerance fitment
• Micrograin solid carbide construction for rigidity and wear resistance
• AlTiN finish supports high-speed, high-heat dry cutting operations
• 40-degree helix angle with spiral flute geometry for smooth chip flow
• Centercutting design allows direct plunge entry without a pre-drilled pilot
• Extra-long classification with 6 inch OAL and 3 inch LOC for deep-reach applications
• Right-hand cut and right-hand flute direction for standard CNC spindle compatibility

Compatibility

Designed as a direct-mount solid carbide square end mill for CNC machining centers and manual knee mills accepting a 1 inch straight shank with shank diameter tolerance of -0.0001 / -0.0004 inches.

Installation Notes

Installation is performed by a qualified machinist or CNC setup technician. Secure the 1 inch shank in a matched end mill holder, collet chuck, or shrink-fit holder rated for the shank diameter before operating the spindle. Inspect the tool holder bore and collet for wear or runout before tightening. Never exceed the tool and machine manufacturer recommended speeds and feeds for the workpiece material and depth of cut.