Osg HP243-1024 Screw Machine Drill Bit 2.60mm Carbide

Product Description

The OSG HP243-1024 is a screw machine length drill bit engineered for high-performance drilling in steel, alloy steel, and cast iron. Built from solid carbide with an EgiAs coating incorporating a TiAlN drill tip finish, it delivers extended tool life and thermal resistance in demanding production environments. The bit measures 2.60 mm in diameter (0.1024 decimal inch) with a 140-degree point angle and a 50 mm (1.97 inches) overall length. The R-thinned point geometry reduces thrust and improves centering at entry. Machinists and toolroom professionals working with CNC machining centers, drill presses, and screw machines will find this bit suited to precision hole-making in ferrous materials.

The HP243-1024 is part of OSG Series HP243, a high-performance carbide drill line designed for short-length, high-accuracy applications. The screw machine length format provides increased rigidity compared to jobber-length equivalents, making it well suited for close-tolerance work in production machining, job shop environments, and automated equipment. Primary target materials include steel, alloy steel, and cast iron. The 3xD flute-to-diameter ratio and straight-cylindrical shank allow straightforward toolholder compatibility across common collet and chuck systems.

Key Features

• Solid carbide construction for rigidity and wear resistance in ferrous materials
• EgiAs coating with TiAlN drill tip finish for thermal protection and extended tool life
• 140-degree point angle with R-thinned web for reduced entry thrust and improved self-centering
• Screw machine length (3xD flute ratio) provides superior rigidity over jobber-length drills
• Straight-cylindrical shank at 3.00 mm (0.1181 decimal inch) fits standard collets and chucks
• Right-hand cutting, regular spiral, spiral flute geometry for efficient chip evacuation

Compatibility

Designed for use in steel, alloy steel, and cast iron workpiece materials. The straight-cylindrical shank is compatible with standard collet chucks, keyless chucks, and drill bushings sized for 3.00 mm shank diameters. Verify machine spindle and toolholder clearance before use.

Installation Notes

Installation and tool changes should be performed with the machine powered down and spindle fully stopped. Secure the shank firmly in the toolholder to the full depth of the collet or chuck to prevent runout and pullout during cutting. Solid carbide drills are brittle and should not be used in machines with excessive spindle runout or play. Consult machine tool documentation and applicable shop safety standards before commencing drilling operations.