Osg 8595205 Screw Machine Drill Bit 0.0807 in Hss

Product Description

The OSG 8595205 is a screw machine length drill bit designed for high-performance drilling in metalworking and fabrication applications. Built from high speed steel with a coated finish, this bit features a 0.0807 inch (2.05 mm) diameter, a 130-degree faceted drill point, and a web-thinned, tapered web configuration that reduces thrust and improves centering on entry. The straight-cylindrical shank measures 3.00 mm in diameter, and the overall length is 44.00 mm (approximately 1.73 inches). Two spiral flutes in a regular helix evacuate chips efficiently during right-hand cutting operations. This bit is suited for machinists, tool and die technicians, and precision fabricators working in production or shop environments.

The OSG 8595205 is built for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Its screw machine length — shorter than jobber length — provides added rigidity and reduced deflection, making it well suited for drill press, CNC, and turret lathe work where precision and repeatability are critical. The 5xD flute-to-diameter ratio supports deeper drilling relative to diameter without sacrificing chip clearance. This bit fits production environments where tight hole tolerances and consistent performance across multiple holes are required.

Key Features

• 0.0807 inch (2.05 mm) cutting diameter with tolerance of +0 to -0.014 mm for precise hole sizing
• 130-degree faceted drill point with web thinning reduces entry thrust and improves self-centering
• High speed steel construction with coated finish for extended tool life in metal cutting
• Screw machine length body provides greater rigidity and less deflection than jobber-length bits
• Two spiral flutes with regular helix promote efficient chip evacuation during continuous drilling
• Right-hand cut with straight-cylindrical shank for compatibility with standard drill chucks and collets

Compatibility

Designed for use in standard drill presses, CNC machining centers, turret lathes, and manual machine tools equipped with chucks or collets accepting a 3.00 mm straight-cylindrical shank. Primary workpiece materials include steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate, per OSG Series 1100 application data.

Installation Notes

Installation and use should be performed by qualified machinists or tool operators familiar with metalcutting practices. Secure the shank fully in the chuck or collet and verify runout before drilling. Power down and de-energize the machine before changing or inspecting the bit. Do not exceed the recommended feed and speed parameters for the workpiece material, as HSS bits are susceptible to heat damage from excessive cutting speeds without adequate coolant or lubrication.