Osg VGM5-0071 Square End Mill 1/4 in 5 Flute Solid Carbide

Product Description

The OSG VGM5-0071 is a solid carbide square end mill designed for precision milling in demanding machining environments. Built on the VGM5 series platform, this single-end tool features 5 helical flutes with a 40-degree helix angle and a variable index design that reduces harmonic vibration during aggressive cuts. The 0.25-inch mill diameter and 1.5-inch length of cut make it well-suited for slotting, profiling, and finishing operations where tool rigidity and chip evacuation are both critical. An EXO coating provides added surface hardness and heat resistance, extending tool life in ferrous and non-ferrous applications. Micrograin carbide substrate supports the tight tolerances expected in production milling.

This end mill is intended for use in CNC machining centers and manual mills where a long-length reach is required. The straight cylindrical shank at 0.25 inches fits standard ER collets and end mill holders commonly found in job shops, tool rooms, and production floor environments. Right-hand cutting direction and right-hand flute direction make it compatible with conventional spindle setups. The centercutting geometry allows plunge entry as well as standard peripheral cutting passes.

Key Features

• 5 helical flutes with variable index for vibration damping during high-feed cuts
• 40-degree helix angle promotes efficient chip evacuation and smooth cutting action
• EXO coating provides wear resistance and thermal protection at the cutting edge
• Centercutting geometry supports direct plunge entry without a pre-drilled pilot hole
• Micrograin solid carbide substrate delivers consistent edge integrity at tight tolerances
• Long-length classification extends reach for deep pockets and tall workpiece profiles

Compatibility

Designed as an OEM-style replacement and production tooling option for CNC machining centers and manual milling machines accepting a 0.25-inch straight cylindrical shank via ER collet or end mill holder.

Installation Notes

Installation should be performed by a qualified machinist or CNC operator. Ensure the spindle is fully stopped and the machine is in an e-stop or locked-out state before inserting or removing the tool from the holder. Confirm collet bore size matches the 0.25-inch shank before tightening to prevent runout. Follow the machine tool manufacturer guidelines for proper tool stick-out length to maintain rigidity at the 1.5-inch depth of cut.