Osg 10157005 Screw Machine Drill Bit 0.157in Cobalt Hss

Product Description

The OSG 10157005 is a screw machine length drill bit engineered for high-performance drilling in steel and alloy steel applications. Built from cobalt high speed steel with a coated finish, this bit handles elevated heat and wear better than standard HSS tools. It features a 0.157-inch (Wire Size 22) diameter, a 130-degree split point for accurate starts and reduced walking, and an X-thinned web for lower thrust requirements. The straight-cylindrical shank seats reliably in drill chucks and machine spindles. At 2.5 inches overall length with a 1.0625-inch flute length, this stub-length geometry offers maximum rigidity in short-reach applications. Intended for use by machinists, toolmakers, and trade professionals running production or maintenance drilling operations.

The OSG 10157005 is suited for drilling steel and alloy steel in screw machine, CNC, and manual drill press setups. The screw machine length profile keeps the bit rigid and minimizes deflection when drilling at moderate to high feed rates. The 3xD flute-to-diameter ratio supports chip evacuation without sacrificing stiffness. Typical applications include component fabrication, fixture work, and general metalworking where hole accuracy and tool life under repeated use are priorities. This bit is sold individually and is appropriate for shops, field maintenance crews, and tool rooms maintaining stock of precision drill bits by wire gauge size.

Key Features

• Cobalt high speed steel construction resists heat and wear in ferrous material drilling
• 130-degree drill point angle with X-thinned web reduces thrust and improves self-centering
• Screw machine length for maximum rigidity and minimal deflection
• 2-flute spiral design promotes efficient chip evacuation
• Coated finish extends tool life in steel and alloy steel applications
• Straight-cylindrical shank fits standard drill chucks and collets

Compatibility

Designed as a screw machine length replacement drill bit for applications requiring Wire Size 22 (0.157 inches) diameter within the 0.1500 to 0.2000 inch drill bit size range, compatible with standard straight-shank drill chucks and CNC toolholders accepting cylindrical shanks.

Installation Notes

Installation of this drill bit should be performed by a qualified machinist or trade professional familiar with rotating tool safety practices. Ensure the machine spindle is fully stopped and locked out before inserting or removing the bit. Seat the shank fully and securely in the chuck or collet before beginning any operation. Follow appropriate speeds and feeds for cobalt HSS tooling in the workpiece material to maintain tool life and hole quality.