Osg HP245-1831 Solid Carbide Jobber Drill 4.65 Mm

Product Description

The OSG HP245-1831 is a solid carbide jobber-length drill bit engineered for high-performance drilling in ferrous materials. Built on the HP245 series platform, it features a 4.65 mm cutting diameter, a 140-degree split point with R-thinned web geometry, and a WD1 coating that extends tool life in demanding production environments. The straight-cylindrical shank measures 6.00 mm in diameter, and the overall length is 74.00 mm with a 36.00 mm flute length. The two-flute spiral configuration with a regular helix and tapered web promotes chip evacuation and reduces walking on entry. This drill is sized at 0.1831 decimal inches and is well suited for CNC machining centers, drill presses, and manual operations where precision hole location is required.

The HP245-1831 is designed for drilling into steel, alloy steel, and cast iron — material codes P and K in ISO classification. It handles blind hole, cross hole, and general drilling applications, and the R-thinned point geometry allows self-centering without a pilot hole in many setups. The 5xD flute-to-diameter ratio and carbide substrate make it appropriate for short-to-medium depth holes in both job shop and production environments. No coolant-through capability is present, so flood coolant or mist applied externally is recommended when operating at elevated feed and speed conditions in harder materials.

Key Features

• Solid carbide substrate for rigidity and wear resistance in ferrous materials
• WD1 coating reduces friction and extends edge life in steel and cast iron
• 140-degree point angle with R-thinned web for self-centering entry and reduced thrust
• Two-flute regular spiral design promotes consistent chip evacuation
• Diameter tolerance of +0.004 to +0.016 mm supports close-tolerance hole requirements
• Straight-cylindrical shank fits standard drill chucks and collet holders

Compatibility

Designed for use in steel, alloy steel, and cast iron workpieces. Suitable for blind hole, cross hole, through-hole drilling, and self-centering applications across CNC and manual drilling platforms that accept a 6.00 mm straight shank.

Installation Notes

Installation and operation should be performed by qualified machinists or tooling technicians familiar with speeds, feeds, and runout tolerances for carbide tooling. Secure the straight-cylindrical shank fully in a drill chuck or collet to minimize runout and prevent tool pullout under load. Carbide is brittle — avoid interrupted cuts or side loading beyond the tool design intent without verifying application suitability. Ensure the machine spindle and workpiece are properly fixtured before engaging the cut.