Osg 10375005 Screw Machine Drill Bit 3/8 in Cobalt Hss

Product Description

The OSG 10375005 is a screw machine length drill bit designed for high-performance drilling in steel and alloy steel. Built from cobalt high speed steel with a coated finish, it delivers superior heat and wear resistance in demanding production and maintenance applications. The bit features a 130-degree point angle with R-thinned web for reduced thrust and cleaner entry. Two spiral flutes with a regular spiral type promote efficient chip evacuation. At 3.625 inches overall length and 0.375 inches (3/8 inch) diameter, the short, rigid body minimizes deflection in screw machine and drill press setups.

This drill bit is suited for production machining, fabrication shops, and maintenance environments where tight tolerances and short drilling depths are common. The straight-cylindrical shank fits standard drill chucks without adapters. It is sized for work in the 0.3500 to 0.4000 inch diameter range and is appropriate for licensed machinists, toolroom technicians, and experienced trade professionals drilling ferrous metals including carbon steel and alloy steel.

Key Features

• Cobalt high speed steel construction for extended tool life in ferrous materials
• 130-degree point angle with R-thinned, tapered web for reduced entry thrust
• Coated finish improves surface hardness and heat resistance
• Screw machine length body increases rigidity and reduces deflection
• Regular spiral flute design promotes consistent chip removal
• Straight-cylindrical shank fits standard drill chucks directly

Compatibility

Designed as a screw machine length replacement or production drill bit for use in steel and alloy steel workpieces. Compatible with any standard drill chuck or machine spindle accepting a straight-cylindrical shank at 3/8 inch diameter.

Installation Notes

Installation should be performed by qualified machinists or trade professionals. Secure the shank fully in a calibrated drill chuck or collet before operation and verify runout before drilling. Always use appropriate cutting fluid when drilling steel or alloy steel to maintain tool life and part quality. Inspect the cutting edge and web condition before each use and replace when wear affects hole tolerance.