Osg 17437508 Cobalt Jobber Drill Bit 7/16 in 120 Deg

Product Description

The OSG 17437508 is a cobalt jobber-length drill bit designed for high-performance drilling in ferrous and hard materials. Built to Series 1700 standards, it features a 7/16-inch diameter, a 120-degree split point, and a V coating that improves surface hardness and heat resistance during cutting. The straight-cylindrical shank fits standard drill chucks without adapters. With a 2-flute spiral design and R-thinned web, it reduces thrust and centers itself on entry, minimizing the need for a pilot hole in many applications. This bit is suited for professional machinists and metalworking tradespeople who need reliable performance in production or maintenance drilling environments.

The OSG 17437508 is intended for drilling in steel, alloy steel, and stainless steel. Its regular spiral flute geometry and R-thinned web make it effective for blind holes, cross holes, through-hole drilling, and self-centering applications. The cobalt construction with V coating handles the elevated temperatures generated when cutting harder alloys and stainless grades. It is sold individually and is appropriate for use in drill presses, CNC machines, and handheld power drills with sufficient torque and speed control for the material.

Key Features

• 7/16-inch (0.4375 inches) diameter with diameter tolerance of +0 to -0.027 mm
• Cobalt construction with V coating for heat and wear resistance in hard metals
• 120-degree drill point angle for efficient entry into steel and stainless steel
• R-thinned, tapered web reduces cutting thrust and improves self-centering
• Right-hand, regular spiral flute with 4-1/16-inch flute length aids chip evacuation
• Coolant-through capable for extended tool life in high-volume or deep-hole applications

Compatibility

Designed for use in steel, alloy steel, and stainless steel workpieces. Suitable for blind hole, cross hole, through-hole drilling, and self-centering operations in machining and metalworking applications.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tradespeople familiar with metal drilling operations. Before changing or inspecting the bit, power down and lock out the drill press or machine spindle per applicable lockout/tagout procedures. Secure the bit fully in the chuck or collet to the correct engagement depth before operation. Use appropriate cutting fluid or coolant when drilling stainless steel or alloy steel to prolong bit life and maintain dimensional accuracy.