Osg 8670310 Screw Machine Drill Bit 0.122 in Carbide

Product Description

The OSG 8670310 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous materials. Built to Series 6300 specifications, it features a 0.122 inch (3.10 mm) diameter, a 140-degree split point, and a two-flute spiral configuration with X-thinned web geometry. The straight cylindrical shank measures 4.00 mm in diameter and seats securely in standard drill chucks or collet holders. At 66.00 mm overall length, the screw machine format provides a short, rigid profile that minimizes deflection in production drilling and CNC machining environments. Licensed machinists and tool and die technicians are the primary installers and operators of this bit.

The OSG 8670310 is suited for drilling steel, alloy steel, and cast iron in both manual and CNC applications. The screw machine length format is well matched to turret lathes, machining centers, and drill presses where stub-length rigidity is required. The 2xD flute-to-diameter ratio and regular spiral geometry support efficient chip evacuation in short-depth holes. This bit is positioned for production environments where precision hole tolerance and tool consistency are critical.

Key Features

• Solid carbide construction for hardness and wear resistance in ferrous materials
• 140-degree drill point angle for self-centering entry and reduced thrust
• X-thinned web with tapered web configuration reduces cutting force at entry
• Two-flute spiral design promotes chip evacuation in short-depth holes
• Straight cylindrical shank compatible with standard chucks and collet systems
• Coated finish for extended tool life in steel and cast iron applications

Compatibility

Designed for use in drilling steel, alloy steel, and cast iron workpieces. Fits standard drill chucks and collet holders accepting a 4.00 mm straight cylindrical shank.

Installation Notes

Installation and operation should be performed by qualified machinists or CNC setup technicians familiar with carbide tooling. Ensure the machine spindle and workpiece are fully secured before engaging the bit. Carbide tooling is brittle and should not be subjected to interrupted cuts or side loading beyond the tool design parameters. Inspect the cutting edge and shank for damage before each use and replace immediately if chipping or wear is detected.