Osg 8691450 Carbide Screw Machine Drill Bit 0.5709 in

Product Description

The OSG 8691450 is a solid carbide screw machine length drill bit designed for high-performance drilling in tough ferrous and exotic materials. With a 0.5709 inch (14.50 mm) cutting diameter and a 140-degree split point, this bit delivers accurate starts and consistent hole geometry without a center punch. The right-hand spiral flute geometry and R-thinned web reduce thrust and improve chip evacuation. Coolant-through capability makes it well suited for production machining environments where heat management is critical. Machinists, tool-room technicians, and CNC operators working in job shop or manufacturing settings are the primary users.

This drill bit is engineered for drilling steel, alloy steel, cast iron, titanium, and titanium alloys. The screw machine length body (shorter than jobber length) increases rigidity and reduces deflection in close-tolerance applications. Series 6500 construction with a tapered web and 3xD flute-to-diameter ratio supports deep hole stability in both manual and CNC setups. The straight-cylindrical shank with a 15.00 mm (0.5906 inch) shank diameter seats securely in standard drill chucks and collet holders.

Key Features

• Solid carbide construction for superior hardness and wear resistance in ferrous and exotic alloys
• 140-degree point angle reduces thrust and improves self-centering on hard materials
• R-thinned, tapered web lowers cutting force and extends tool life
• Coolant-through design supports high-speed production drilling with active chip and heat control
• Screw machine length body increases rigidity and minimizes runout versus jobber length
• Coated finish for added surface hardness and lubricity during cutting

Compatibility

Designed for use in CNC machining centers, drill presses, and manual lathes accepting a straight-cylindrical shank. Rated for primary workpiece materials including steel, alloy steel, cast iron, titanium, and titanium alloys.

Installation Notes

Installation and tool changes should be performed with the machine fully powered down and the spindle at a complete stop. Seat the straight-cylindrical shank fully in the chuck or collet holder and verify runout before cutting. Coolant-through connections should be confirmed leak-free before initiating a cutting cycle. Follow the machine manufacturer and tooling manufacturer feed-and-speed recommendations for the specific workpiece material.