Osg 8671050 Screw Machine Drill Bit 0.4134 in Carbide

Product Description

The OSG 8671050 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous materials. With a 0.4134 inch (10.50 mm) diameter and a 140-degree split point, it delivers fast penetration and reduced thrust in demanding production environments. The right-hand spiral flute geometry, combined with R-thinned web preparation and a tapered web configuration, improves chip evacuation and extends tool life when cutting steel, alloy steel, and cast iron. At 102.00 mm overall length with a 12.00 mm straight-cylindrical shank, this bit fits standard drill chucks and toolholders used in CNC machining centers and manual drill presses alike.

This bit is built for metalworking applications in manufacturing, maintenance, and fabrication shops. The screw machine length format provides added rigidity over jobber-length bits, making it well suited for short-hole drilling where runout control and accuracy are priorities. The Series 6300 designation places it in OSG high-performance carbide tooling. Typical users include machinists, tool and die technicians, and industrial maintenance professionals working with steel and cast iron components. It ships as a single bit, appropriate for both low-volume repair work and production line tooling.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• 140-degree drill point angle reduces thrust and improves entry accuracy
• R-thinned web with tapered web configuration enhances chip flow and reduces walking
• Screw machine length body provides greater rigidity than jobber-length alternatives
• 2-flute regular spiral design optimized for steel, alloy steel, and cast iron
• Coated finish for added surface hardness and extended cutting life

Compatibility

Designed for use in standard drill chucks and toolholders accepting a 12.00 mm straight-cylindrical shank. Primary workpiece materials are steel, alloy steel, and cast iron. Part of the OSG Series 6300 high-performance carbide drill line.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling. Ensure the machine spindle and toolholder are clean and properly secured before inserting the shank to prevent runout. Carbide tooling is brittle compared to high-speed steel — avoid side loading or impact during setup. Verify spindle speed and feed rate are appropriate for the workpiece material and diameter before engaging the cut.