Osg HP243-0827 Screw Machine Drill Bit 0.0827 in Carbide

Product Description

The OSG HP243-0827 is a screw machine length drill bit designed for high-performance drilling in ferrous materials. Built from solid carbide and coated with TiAlN, this bit delivers heat resistance and extended tool life in demanding production environments. It measures 0.0827 inches (2.10 mm) in diameter with a 140-degree split point and R-thinned web for reduced thrust at entry. The straight-cylindrical shank measures 3.00 mm in diameter, and the overall length is approximately 1.77 inches (45.00 mm). The two-flute spiral design runs at a 3xD flute-to-diameter ratio with a tapered web configuration. This bit is sized for precision work and is suited for machinists and tool-and-die professionals running production drilling operations.

The HP243-0827 is built for drilling steel, alloy steel, and cast iron in screw machine and short-hole applications. The screw machine length profile fits standard drill chucks and collet toolholders used in CNC machining centers, drill presses, and automatic screw machines. Right-hand cutting direction and regular spiral flutes support efficient chip evacuation in interrupted and continuous cuts. The TiAlN coating helps maintain cutting-edge integrity at elevated spindle speeds typical in production runs on ferrous workpieces.

Key Features

• Solid carbide construction for rigidity and wear resistance in hard ferrous materials
• TiAlN coating provides thermal protection and extends tool life at high cutting speeds
• 140-degree drill point angle reduces walking and improves entry accuracy
• R-thinned web minimizes thrust force and supports clean hole entry
• Screw machine length for improved rigidity and reduced deflection in short-hole drilling
• Two-flute spiral design with tapered web for effective chip removal

Compatibility

Designed for use in steel, alloy steel, and cast iron workpieces. Fits standard collet chucks and toolholders accepting a 3.00 mm straight-cylindrical shank. Part of the OSG HP243 series, covering decimal inch drill sizes from 0.0000 to 0.1000 inch.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists familiar with cutting tool selection and speeds-and-feeds practices. Secure the shank fully in a collet or drill chuck rated for the shank diameter before operation. Inspect the cutting edge for chips or wear before each use and replace if the edge is compromised. Follow machine manufacturer guidelines for spindle speed, feed rate, and clamping force appropriate to the workpiece material and hole depth.