Osg 5742100 Square End Mill 23/32 in 4 Flute Vanadium Hss

Product Description

The OSG 5742100 is a 4-flute square end mill designed for general-purpose milling in ferrous and non-ferrous materials. Built from 3% vanadium high speed steel, it delivers improved wear resistance over standard M2 HSS, making it a practical choice for shops running conventional mills or CNC machining centers without high-pressure coolant systems. The 23/32-inch cutting diameter and 1-5/8-inch length of cut handle slotting, side milling, and profiling operations. A 30-degree helix angle promotes smooth chip evacuation, and the centercutting geometry allows direct plunge entry without a pre-drilled start hole.

This end mill fits standard milling applications in job shops, tool rooms, and maintenance machining environments. The 1/2-inch shank diameter seats directly in standard collet chucks, end mill holders, and milling machine spindles. The regular-length body suits most open-pocket and peripheral milling work where extended reach is not required. Right-hand cut and right-hand spiral flute geometry is the conventional configuration for upcut milling on vertical and horizontal milling machines.

Key Features

• 3% vanadium high speed steel construction for enhanced edge retention vs. standard HSS
• 4 spiral flutes with 30-degree helix angle for efficient chip evacuation
• Centercutting design permits direct plunge cuts without a pilot hole
• Right-hand cut, right-hand flute — standard configuration for conventional milling setups
• Uncoated finish — suitable for regrinding and compatible with cutting oil or soluble coolant
• Regular length body for rigidity in slotting and side milling operations

Compatibility

Designed for use in standard 1/2-inch collet chucks, end mill holders, and milling machine spindles on vertical mills, knee mills, and CNC machining centers.

Installation Notes

Installation and tool changes must be performed with the machine spindle fully stopped and locked out per applicable safety procedures. Seat the shank fully into the holder and torque the set screw or collet nut to the holder manufacturer's specification. Verify runout with a dial indicator before cutting. A licensed machinist or qualified shop technician should confirm feed, speed, and depth-of-cut parameters based on workpiece material before use.