Osg 8608258 Screw Machine Drill Bit 0.1015 in Xpm

Product Description

The OSG 8608258 is a screw machine length drill bit engineered for high-performance drilling in demanding metalworking applications. Manufactured from XPM high-speed steel with an XPM coating, this bit delivers extended tool life and heat resistance compared to standard HSS options. It measures 0.1015 inches (2.58 mm) in diameter with a 130-degree split point and a straight-cylindrical shank. The screw machine length format — shorter than jobber length — provides added rigidity and reduced deflection in production drilling environments. Machinists, tool-and-die technicians, and maintenance professionals working on CNC lathes, drill presses, and screw machines install this type of bit.

This bit is designed for drilling steel, alloy steel, cast iron, and nickel alloy workpieces. It is suited to production environments where cycle times matter and tool life is critical. The short overall length of approximately 1.81 inches (46.00 mm) makes it a practical choice for tight setups and short-travel spindles. The 2-flute spiral design and X-thinned web reduce cutting forces and improve chip evacuation, which is especially beneficial when drilling gummy nickel alloys or harder alloy steels.

Key Features

• XPM high-performance tool steel construction with XPM coating for extended wear resistance
• 130-degree drill point angle with standard point geometry for accurate entry on flat and curved surfaces
• X-thinned, tapered web reduces thrust force and improves penetration in hard materials
• Screw machine length (3xD flute-to-diameter ratio) provides rigidity and minimizes runout
• Right-hand cut, 2-flute spiral configuration for efficient chip removal
• Straight-cylindrical shank compatible with standard drill chucks and collets
• Diameter tolerance of plus 0 to minus 0.014 mm for consistent hole sizing

Compatibility

Sized for applications within the 0.1000 to 0.1500 inch decimal inch drill bit range. Suitable for use with standard drill chucks and collet systems accepting a 3.00 mm (approximately 0.118 inch) straight shank. Intended for use on steel, alloy steel, cast iron, and nickel alloy workpieces as stated by the manufacturer.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with metalcutting operations. Ensure the spindle is at a full stop and the machine is de-energized or in a safe state before loading or unloading the bit. Secure the shank fully in the chuck or collet to the manufacturer-recommended depth to prevent pullout under load. Do not exceed the feed and speed parameters appropriate for the workpiece material and machine capability.