Osg 4560911 Square End Mill 1in 5 Flute Cobalt Tialn

Product Description

The OSG 4560911 is a single-end square end mill designed for precision milling in ferrous and non-ferrous materials. Built from cobalt high-speed steel and finished with a TiAlN coating, it delivers heat resistance and extended tool life in demanding cutting environments. The 1 inch cutting diameter and 4 inch length of cut make it well suited for deep-slot and peripheral milling operations. With 5 flutes and a 30-degree helix angle, it balances chip evacuation with surface finish quality. This is a professional-grade cutting tool installed and operated by machinists and toolroom technicians on CNC and manual milling machines.

This end mill is appropriate for production and job-shop milling applications where long reach is required. The long overall length of 6.5 inches and 1 inch shank diameter provide rigidity and compatibility with standard ER and milling chucks. The fine pitch flute configuration suits finishing and light roughing passes in steel, stainless, and alloy materials. Right-hand cut and right-hand flute geometry follow standard spindle conventions on most vertical and horizontal milling machines. It is a Series 455 tool from OSG, recognized in tooling specifications for cobalt long-reach end mills.

Key Features

• Cobalt high-speed steel construction for elevated heat and wear resistance
• TiAlN coating extends tool life in high-temperature cutting conditions
• 5-flute fine-pitch design balances chip clearance and surface finish
• 30-degree helix angle suits a range of ferrous and alloy milling applications
• Right-hand cut, right-hand flute geometry fits standard CNC and manual mill spindles
• Long overall length of 6.5 inches accommodates deep-reach milling setups

Compatibility

Designed as an OEM-style replacement and standard tooling selection for milling machines accepting a 1 inch straight shank end mill held in a standard milling chuck or collet system.

Installation Notes

Installation should be performed by a qualified machinist or toolroom technician. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the end mill. Secure the 1 inch shank in a properly sized collet or end mill holder torqued to the machine manufacturer's specification. Inspect the TiAlN coating and cutting edges for chips or wear before each use, and replace the tool if edge integrity is compromised.