OSG Slow Spiral Carbide Drill - Solid - Uncoated - 4mm ISO Insert - VN Style repeatable bore sizes even in

repeatable bore sizes even in tough materials

Built for left-hand threads in M58 x 1 size with a 6g designation

Carbide (k10) stub design: Enhanced wear resistance and consistent sizing for repeatable hole finishes in challenging materials and setups

robust solution for keeping cutting tools securely in place

and long tool life for consistent threading performance

OSG Slow Spiral Carbide Drill - Solid - Uncoated - 4mm ISO Insert - VN Style repeatable bore sizes even inThe OSG Slow Spiral Carbide Drill is a solid carbide drilling tool designed for precision and versatility in 4 mm diameter. Its slow spiral geometry promotes controlled chip evacuation and helps minimize workpiece damage, delivering clean, accurate holes with consistent results. Because it is uncoated, this drill performs reliably across a broad range of materials, including metals, plastics, and composites. This makes it a flexible addition to any