Osg 8613026 Letter Y Jobber Drill Bit Powdered Metal

Product Description

The OSG 8613026 is a jobber length drill bit in Letter Y size (0.4040 decimal inch / 10.26 mm) designed for high-performance drilling in demanding metalworking applications. Built from powdered metal with a V coating, it features a 130-degree drill point angle with R-thinned point geometry to reduce thrust and improve self-centering. The two-flute spiral design with a tapered web promotes efficient chip evacuation. With an overall length of 144 mm (approximately 5.67 inches) and a flute length of 87 mm (approximately 3.43 inches), this bit fits standard jobber-length drill chucks and is suited for production and maintenance machining environments. It weighs approximately 0.205 pounds.

The OSG 8613026 is intended for drilling into steel, alloy steel, cast iron, and nickel alloys. It is appropriate for blind hole drilling, cross hole drilling, through drilling, and self-centering applications. The straight-cylindrical shank with a 12 mm diameter seats securely in standard drill chucks and collet holders used in manual drill presses, CNC machining centers, and handheld power tools. This bit targets machinists, tool-and-die workers, maintenance technicians, and fabricators who need consistent, repeatable hole quality in hard ferrous and high-alloy materials.

Key Features

• Letter Y size: 0.4040 decimal inch (10.26 mm) diameter with a tolerance of +0 to -0.027 mm
• Powdered metal construction with V coating for improved wear resistance in ferrous materials
• 130-degree drill point angle with R-thinned point for reduced entry thrust and self-centering
• Two-flute regular spiral with tapered web for effective chip clearing
• Straight-cylindrical 12 mm shank compatible with standard drill chucks and collet holders
• Rated for blind hole, cross hole, through drilling, and self-centering tool applications

Compatibility

Designed for use with steel, alloy steel, cast iron, and nickel alloy workpiece materials. The straight-cylindrical shank fits standard drill chucks and collet systems accepting a 12 mm shank. Part of OSG Series 1950.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard drill presses, CNC machining centers, or handheld power tools. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits. Always power down and lock out the machine before changing bits. Follow applicable shop safety standards and manufacturer feed-and-speed guidelines for the specific workpiece material and machine setup.