Osg 651026411 Solid Carbide Jobber Drill 17/64 Inch

Product Description

The OSG 651026411 is a solid carbide jobber-length drill bit designed for high-performance drilling in demanding metal-cutting applications. Built on OSG Series 6510, it features a 17/64 inch (0.2656 inch / 6.75 mm) diameter with a 140-degree R-thinned point that promotes self-centering and reduces entry thrust. The EgiAs coating improves wear resistance and surface lubricity in hard and abrasive workpiece materials. At 109.00 mm overall length with a 55.00 mm flute length and a 5xD flute-to-diameter ratio, this bit suits typical jobber-length reach requirements. Cutting is right-hand spiral with a regular helix and a tapered web configuration. Diameter tolerance is held to +0 to -0.022 mm.

This drill is rated for steel, alloy steel, cast iron, titanium, and titanium alloys — ISO material codes P, K, S, and H. It handles blind hole drilling, cross-hole drilling, standard through-hole drilling, and self-centering applications. The 5/16 inch straight-cylindrical shank fits standard drill chucks and collet holders common in CNC machining centers, drill presses, and manual machines in production and maintenance environments. Coolant-through capability makes it suitable for deep-hole work where chip evacuation and heat management are critical.

Key Features

• Solid carbide construction for rigidity and heat resistance in hard materials
• EgiAs coating enhances wear resistance and reduces built-up edge in steel and titanium alloys
• 140-degree R-thinned point for self-centering entry and reduced thrust force
• Coolant-through design supports chip evacuation in blind-hole and deep-hole applications
• Tapered web with regular spiral for consistent chip flow across supported material codes
• Diameter tolerance of +0 to -0.022 mm suits close-tolerance hole requirements

Compatibility

Designed for use in steel, alloy steel, cast iron, titanium, and titanium alloy workpieces (ISO codes P, K, S, H). Compatible with standard drill chucks and collet systems accepting a 5/16 inch straight-cylindrical shank.

Installation Notes

Installation and setup should be performed by a qualified machinist or tooling technician familiar with carbide tooling requirements. Secure the shank fully in a properly sized chuck or collet before operation and verify runout before cutting. Carbide tooling is brittle — avoid side loads, interrupted cuts without appropriate feed-rate adjustments, and re-chucking in worn holders. Confirm coolant lines are active and delivering adequate flow before initiating coolant-through operation.