OSG Variable Lead Optimal Flute Shape Endmill Corner Radius - Weldon Shank - For Smooth Evacuation of Chips - 16mm x R4

The OSG Variable Lead Optimal Flute Shape Endmill with a corner radius and a Weldon shank is a precision cutting tool designed to improve chip evacuation during milling operations. Its unique variable lead geometry and an optimized flute shape promote smooth chip flow, helping prevent clogging and reducing the chance of built-up edge during demanding cuts.

Engineers, machinists, tradespeople, hobbyists, and manufacturing teams rely on this endmill for reliable, high-performance results across a wide range of materials. With a 16 mm diameter and a 4 mm corner radius (R4), plus a Weldon shank for rigid, secure toolholding, it delivers steady, repeatable performance in everyday milling tasks while preserving tool life through controlled cutting geometry.

• Variable Lead for Smooth Cutting: Reduces vibration and chatter, promoting consistent chip formation and a cleaner finish across multiple passes and materials.
• Optimized Flute Shape with 4 mm Corner Radius: Enhances chip evacuation and resists corner wear, helping maintain sharpness and deliver stable, high-quality cuts over time.
• Weldon Shank for Secure Toolholding: Provides rigid clamping and minimal runout, improving precision, surface finish, and reliability in demanding milling applications.

Together, these features translate to faster, more predictable milling performance with less downtime spent clearing chips, better edge retention, and consistent results from part to part—making it a dependable choice for production environments and intricate projects alike.