Osg 8665750 Screw Machine Drill Bit 7.5 Mm Solid Carbide

Product Description

The OSG 8665750 is a screw machine length solid carbide drill bit designed for high-performance drilling in demanding metalworking applications. With a 7.5 mm diameter and a 140-degree R-thinned point, it delivers fast penetration and reduced thrust in hard and abrasive materials. The coated solid carbide construction provides heat and wear resistance beyond what high-speed steel can offer. At 94 mm overall length with a 38 mm flute length, this short-body geometry improves rigidity and reduces runout. Right-hand cut with a straight-cylindrical shank measuring 8 mm in diameter, it seats securely in standard drill chucks and collets. Rated for a 3xD flute-to-diameter ratio, it suits production drilling environments where precision and tool life matter.

This drill bit is intended for use in CNC machining centers, drill presses, and manual machines where short, rigid tooling is preferred. It is engineered for drilling steel, stainless steel, cast iron, titanium, and titanium alloys. Coolant-through capability supports through-spindle coolant delivery, making it well-suited for deep-hole applications in production settings. Machinists, toolroom technicians, and CNC operators working in metal fabrication, job shops, and manufacturing facilities will find this bit appropriate for precision hole-making in tough workpiece materials.

Key Features

• Solid carbide construction for superior wear resistance and rigidity in hard materials
• 140-degree R-thinned point reduces thrust and improves self-centering on entry
• Coated finish extends tool life when cutting steel, stainless steel, and titanium alloys
• Coolant-through design compatible with through-spindle coolant delivery systems
• Screw machine length body provides increased stiffness and reduced deflection
• Tapered web with R-thinning minimizes chisel edge load at cut initiation

Compatibility

OSG Series 5200 screw machine drill bit designed for use in workpiece materials including steel, stainless steel, cast iron, titanium, and titanium alloy. Fits any standard chuck or collet accepting an 8 mm straight-cylindrical shank. Drill bit size range for this series is 6.50 mm to 8.00 mm.

Installation Notes

Installation and use should be performed by qualified machinists or CNC operators familiar with carbide tooling protocols. Secure the shank fully in the collet or chuck before operation and verify runout with a dial indicator when tolerance is critical. Carbide tooling is brittle and should not be used for interrupted cuts or hammer-action drilling. Always set appropriate spindle speed and feed rate for the workpiece material before engaging the cut.