Osg 8670200 Screw Machine Drill Bit 0.0787 in Solid Carbide

Product Description

The OSG 8670200 is a screw machine length solid carbide drill bit designed for high-performance drilling in demanding shop and machining environments. Built to Series 6300 specifications, it features a 2.00 mm (0.0787 inches) diameter with a 140-degree split point and X-thinned web geometry that reduces thrust and improves centering on entry. The straight-cylindrical shank measures 4.00 mm and seats securely in standard chucks and collets. With a regular spiral flute and right-hand cut, this bit delivers efficient chip evacuation during short-hole drilling operations. It is intended for use by machinists, toolroom technicians, and production drilling professionals working with ferrous materials.

The OSG 8670200 is suited for drilling steel, alloy steel, and cast iron in screw machine, CNC, and manual drill press applications. The screw machine length format provides a rigid, stub-style profile that minimizes deflection in close-tolerance work. The 2xD flute-to-diameter ratio and tapered web configuration make it well matched to through-hole and blind-hole operations in short-chipping ferrous materials where bit rigidity and hole accuracy are critical.

Key Features

• 2.00 mm (0.0787 inches) diameter with a tolerance of +0 to -0.014 mm for consistent hole sizing
• 140-degree drill point angle with X-thinned web reduces entry thrust and improves self-centering
• Solid carbide construction provides hardness and wear resistance in ferrous material applications
• Screw machine length (stub) profile minimizes deflection during tight-tolerance drilling
• Right-hand cut, regular spiral flute, 2-flute design promotes reliable chip evacuation
• Coated finish extends tool life in steel and alloy steel cutting operations

Compatibility

Designed for drilling steel, alloy steel, and cast iron. Compatible with standard straight-shank chucks and collet systems accepting a 4.00 mm shank diameter.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom professionals familiar with carbide tooling. Ensure the machine spindle and chuck are de-energized and at a full stop before inserting or removing the bit. Carbide is brittle — avoid side loading, interrupted cuts without appropriate feed rate adjustment, or dropping the bit on hard surfaces. Verify chuck runout is within acceptable limits before beginning a precision drilling operation.