Osg 8670620 Carbide Screw Machine Drill Bit 6.2 Mm

Product Description

The OSG 8670620 is a solid carbide screw machine length drill bit designed for high-performance drilling in ferrous materials. Built to Series 6300 standards, it features a 6.2 mm cutting diameter (0.2441 inch), a 140-degree point angle with R-thinned web geometry, and a coated finish that extends tool life in demanding production environments. The straight-cylindrical shank measures 8.00 mm in diameter, and the overall length is 79.00 mm (3.11 inches). With a 34.00 mm flute length and a 2xD flute-to-diameter ratio, this bit is suited for short, stable cuts in tight tolerances. Machinists and toolroom technicians working in CNC and manual drilling applications install this bit where rigidity and precision are required.

This drill bit is intended for use on steel, alloy steel, and cast iron workpieces. The screw machine length body keeps overhang minimal, improving rigidity and reducing deflection when drilling in high-cycle production setups. The right-hand spiral flutes and tapered web configuration support efficient chip evacuation. This bit fits applications where a compact, stiff drill geometry outperforms jobber-length alternatives, particularly on machining centers, drill presses, and turret lathes operating at production volumes.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• 140-degree point angle with R-thinned web reduces entry force and improves centering
• Coated finish extends tool life under continuous cutting conditions
• Screw machine length body minimizes overhang and deflection
• Straight-cylindrical shank fits standard drill chucks and collets accepting 8.00 mm shanks
• Right-hand cut with regular spiral and tapered web for consistent chip evacuation

Compatibility

Designed as an OEM-style replacement and production drill bit for machining applications in steel, alloy steel, and cast iron. Compatible with drill chucks and collets accepting a straight-cylindrical shank of 8.00 mm diameter.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists familiar with carbide tooling. Secure the shank fully in a matched collet or drill chuck before operation and verify runout is within acceptable limits, as solid carbide is more brittle than high-speed steel and sensitive to side loading. Power down and lock out the machine spindle before changing tooling. Follow the machine manufacturer and tooling supplier recommendations for speeds, feeds, and coolant strategy appropriate to the workpiece material.