Osg HP255-4016 Solid Carbide Jobber Drill 10.20 Mm

Product Description

The OSG HP255-4016 is a solid carbide jobber-length drill designed for high-performance drilling in steel, cast iron, and hardened materials. It features a 140-degree point angle with R-thinned web geometry that reduces thrust and promotes self-centering at entry. The EgiAs multi-layer coating provides heat and wear resistance for extended tool life in demanding production environments. At 10.20 mm in diameter with a 4.6457-inch overall length and a 2.7953-inch flute length, this drill is built for the 5xD depth-of-cut range typical in blind hole and cross hole applications. Licensed machinists and CNC operators are the primary users.

The HP255-4016 is suited for production drilling in ferrous materials including steel and cast iron as well as hardened workpiece materials. Its coolant-through design channels cutting fluid directly to the tip, making it effective in high-speed CNC machining centers where heat management is critical. Typical applications include blind hole drilling, cross hole operations, and general drilling where self-centering entry and tight diameter tolerance are required. The straight cylindrical shank seats in standard collet chucks and hydraulic toolholders.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous and hardened materials
• 140-degree point angle with R-thinned web for self-centering entry and reduced thrust
• EgiAs multi-layer coating for heat resistance and extended tool life
• Coolant-through design for direct tip cooling in high-speed applications
• Regular spiral flute geometry with 5xD flute-to-diameter ratio
• Diameter tolerance of +0.007 to +0.025 mm for consistent hole quality

Compatibility

Designed for use in steel, cast iron, and hardened materials as an OSG Series HP255 high-performance drill. Compatible with standard straight-shank collet chucks and hydraulic toolholders accepting a 12 mm shank diameter.

Installation Notes

Installation is performed by machinists or CNC setup technicians. Ensure the machine spindle and toolholder are clean and free of debris before seating the shank. Confirm coolant-through passages are clear and that machine coolant pressure is appropriate for the application before running. Follow shop safety protocols and machine manufacturer guidelines for spindle speed and feed rate selection.