Osg 8595285 Screw Machine Drill Bit 2.85 Mm Tin Hss

Product Description

The OSG 8595285 is a screw machine length drill bit engineered for high-performance metal drilling in tight-clearance and production environments. Built from high-speed steel with a titanium nitride (TiN) coating, it operates at a 2.85 mm diameter with a 130-degree faceted point and a web-thinned, tapered web configuration for reduced thrust and cleaner entry. At 48 mm overall length with a 16 mm flute length and a 3.00 mm straight-cylindrical shank, this bit is designed for stub-length drilling applications where rigidity and precision matter. It cuts right-hand with two spiral flutes in a regular helix pattern. Licensed machinists, tool and die techs, and HVAC or plumbing fabricators working with metal sheet or structural components will find this a direct fit for production drilling setups.

This bit is suited for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. The screw machine length profile makes it well matched to drill press, CNC turret, and manual machine tool applications where a shorter, stiffer bit reduces deflection. The 5xD flute-to-diameter ratio provides adequate chip evacuation without sacrificing rigidity. It is sold individually and requires no minimum order beyond a single unit, making it practical for both bench-stock replacement and single-job procurement.

Key Features

• High-speed steel construction with titanium nitride coating for extended tool life in ferrous and non-ferrous materials
• 130-degree faceted point with web thinning reduces entry thrust and improves point accuracy
• Screw machine (stub) length at 48 mm overall for maximum rigidity in short-reach setups
• 3.00 mm straight-cylindrical shank fits standard drill chucks and quick-change toolholders
• Right-hand cut with two regular spiral flutes for efficient chip clearance
• Diameter tolerance of plus 0 to minus 0.014 mm for close-tolerance hole requirements

Compatibility

Designed for use in drill presses, CNC turrets, and machine tool spindles 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 specifications.

Installation Notes

Installation and use should be performed by a qualified machinist or trade professional familiar with rotating cutting tools. Secure the shank fully in the chuck or collet before operation and verify runout is within acceptable limits for the application. Do not exceed the recommended feed and speed parameters for the workpiece material and machine setup. Eye protection and appropriate chip guarding are required when operating any drill bit in a powered spindle.