Osg VG441-3755 Square End Mill 3/8 in 4 Flute Solid Carbide

Product Description

The OSG VG441-3755 is a solid carbide square end mill designed for precision milling operations in metalworking and machining environments. Built from micrograin carbide stock and finished with a TiAlN coating, this tool delivers extended wear resistance at elevated cutting temperatures. It runs a 3/8 inch diameter with a 1-1/2 inch length of cut and a 4 inch overall length. The four-flute, right-hand spiral configuration with a 35-degree helix angle promotes efficient chip evacuation and smooth finishes on steel, stainless, and other ferrous materials. This end mill is centercutting, allowing plunge entry, and is intended for use by machinists and tool-and-die professionals in CNC and manual milling applications.

The VG441-3755 fits standard 3/8 inch collets and tool holders used in vertical machining centers, knee mills, and CNC routers. With a variable index geometry and micrograin carbide substrate, it is suited for finishing and semi-finishing passes on hardened and difficult-to-machine alloys. The 35-degree helix angle provides a balance between cutting force reduction and chip clearance, making it effective across a range of steel and alloy applications in both job shop and production environments.

Key Features

• Solid micrograin carbide construction for rigidity and edge retention
• TiAlN finish extends tool life in high-temperature cutting conditions
• 35-degree helix spiral flute promotes consistent chip evacuation
• Centercutting geometry allows direct plunge entry without pre-drilling
• Variable index flute spacing reduces chatter and vibration during cutting
• Right-hand cut and right-hand flute configuration for standard spindle rotation

Compatibility

Designed for use in standard 3/8 inch collet chucks and end mill holders on CNC vertical machining centers, knee mills, and similar milling equipment. Part of the OSG VG441 series.

Installation Notes

Installation should be performed by a qualified machinist or tooling technician. Ensure the spindle is fully stopped and the machine is in a safe state before mounting or removing the end mill. Seat the shank fully into the collet or tool holder to the recommended grip length and torque the retention nut to the tool holder specification. Verify runout with a dial indicator before beginning a cut to avoid premature edge wear.