Osg 8692390 Carbide Jobber Drill 3.90mm 140 Deg Egias

Product Description

The OSG 8692390 is a solid carbide jobber-length drill bit designed for high-performance drilling in ferrous and exotic workpiece materials. It features a 3.90 mm diameter, a 140-degree R-thinned point for improved self-centering and reduced thrust, and an EgiAs coating that extends tool life in demanding applications. The 4.00 mm straight-cylindrical shank is compatible with standard drill chucks and collet systems. With an overall length of 86.00 mm and a flute length of 36.00 mm, this drill is suited for production environments where consistent hole quality and tool life are priorities. Installation and operation are performed by machinists and tooling technicians.

The OSG 8692390 is rated for use in steel, alloy steel, cast iron, titanium, and titanium alloys, covering ISO material codes P, K, S, and H. Typical applications include blind hole drilling, cross hole drilling, general drilling, and self-centering operations. The 5xD flute-to-diameter ratio supports chip evacuation in moderate-depth holes. Coolant-through capability allows internal coolant delivery, making it effective in CNC machining centers and other coolant-equipped setups where heat and chip management are critical to hole quality.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard materials
• EgiAs coating for extended tool life and reduced friction in ferrous and exotic alloys
• 140-degree R-thinned point reduces thrust and improves self-centering without a pilot hole
• Coolant-through design supports internal coolant delivery in equipped machines
• Regular spiral flute geometry with tapered web for efficient chip evacuation
• Straight-cylindrical 4.00 mm shank fits standard chucks and collet holders

Compatibility

Designed for use in CNC machining centers and drilling equipment capable of accepting a 4.00 mm straight-cylindrical shank. Suited for workpiece materials including steel, alloy steel, cast iron, titanium, and titanium alloys as indicated by ISO codes P, K, S, and H.

Installation Notes

Installation and tool changes should be performed by qualified machinists following the machine tool manufacturer guidelines. Ensure the spindle is fully stopped and the machine is in a safe, locked-out state before inserting or removing the drill. Verify shank seating depth and runout with the collet or chuck before beginning production cuts. Use appropriate cutting parameters for the workpiece material and confirm coolant supply is active when using the coolant-through feature.