Osg 8690930 Carbide Screw Machine Drill Bit 9.30mm

Product Description

The OSG 8690930 is a solid carbide screw machine length drill bit engineered for high-performance drilling in demanding metalworking applications. It features a 9.30 mm (0.3661 inch) diameter, a 140-degree split point, and a multi-layer coating finish. The R-thinned web reduces thrust and improves chip evacuation. At 106.00 mm overall length with a 47.00 mm flute length, this is a stub-style bit designed for rigidity and reduced deflection. Coolant-through capability supports high-speed production drilling. Machinists and tool-and-die professionals specify this drill for applications where carbide's hardness and wear resistance outperform high-speed steel.

The 8690930 is rated for drilling steel, alloy steel, cast iron, titanium, and titanium alloys — materials common in aerospace, automotive, and precision machining environments. The 3xD flute-to-diameter ratio and regular spiral flute geometry suit it to CNC machining centers and screw machine setups where short, stiff tooling minimizes runout. The straight cylindrical shank at 10.00 mm diameter seats directly in standard collet chucks or drill chucks without an adapter. This bit is a Series 6500 offering from OSG, a line positioned for high-performance ferrous and titanium work.

Key Features

• Solid carbide construction for superior hardness and wear resistance in ferrous and titanium materials
• 140-degree split point geometry reduces walking and lowers entry thrust
• R-thinned, tapered web improves chip evacuation and cutting efficiency
• Coolant-through design supports high-speed, deep-hole production drilling
• Multi-layer coating finish extends tool life in abrasive workpiece materials
• Screw machine (stub) length provides rigidity and reduces deflection in close-tolerance work

Compatibility

Designed for use in CNC machining centers, screw machines, and drill presses equipped with collet chucks or drill chucks accepting a 10.00 mm straight cylindrical shank. Suitable for drilling steel, alloy steel, cast iron, titanium, and titanium alloys. Fits drill bit size range of 0.3500 to 0.4000 decimal inch (8.00 to 9.50 mm) toolholding setups.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists familiar with carbide tooling. Ensure the spindle and toolholder are clean and within runout tolerance before seating the shank, as carbide is brittle and sensitive to side loading from a worn or dirty chuck. Confirm coolant-through supply lines are active before engaging the cut if using internal coolant. Never exceed the recommended surface footage or feed rate for the workpiece material, as carbide drills are prone to catastrophic fracture under shock loading or interrupted cuts without proper setup.