Osg 17687508 Cobalt Jobber Drill 11/16 in 120 Deg

Product Description

The OSG 17687508 is a cobalt jobber-length drill bit designed for high-performance drilling in demanding metalworking applications. It features an 11/16 inch (0.6875 inch) diameter, a 120-degree split point angle, and a V-coating that improves heat and wear resistance. The straight-cylindrical shank measures 3/4 inch in diameter and fits standard drill chucks. At 8-9/32 inches overall length with a 5-5/8 inch flute length, this tool is well-suited for production environments where tool life and hole quality in hard materials are priorities. A licensed machinist or skilled tradesperson typically installs and operates this bit in milling machines, drill presses, or hand-held power tools.

The 17687508 is engineered for use in steel, alloy steel, and stainless steel workpieces. It supports blind hole drilling, cross-hole operations, standard through drilling, and self-centering applications. The 2-flute regular spiral configuration promotes efficient chip evacuation. Coolant-through capability makes it compatible with machine tool setups where through-spindle coolant delivery is available, helping extend tool life in continuous production runs.

Key Features

• Cobalt construction with V-coating for elevated heat resistance and extended tool life in ferrous metals
• 120-degree point angle provides aggressive cutting action suitable for steel and stainless steel
• R-thinned web reduces thrust requirements and improves self-centering performance
• Coolant-through design compatible with through-spindle coolant machine setups
• Tapered web configuration adds strength and rigidity along the flute length
• Diameter tolerance held to +0 to -0.027 mm for consistent hole sizing

Compatibility

Designed as an OEM-style replacement drill bit for Series 1700 applications; suitable for use in standard drill presses, CNC machining centers, and hand-held power tools accepting a 3/4 inch straight-cylindrical shank. Primary workpiece material compatibility includes steel, alloy steel, and stainless steel as specified by material codes P, M, and N.

Installation Notes

Installation and operation should be performed by a qualified machinist or trained operator. Power down and de-energize the machine tool before inserting or removing the bit from the chuck or collet. Ensure the shank is fully seated and the chuck is tightened to the tool manufacturer's recommended procedure before beginning any cut. When using coolant-through capability, verify that coolant lines are clear and flow is confirmed before starting the spindle.