Osg 8595253 Screw Machine Drill Bit 0.0995 in Hss Tin

Product Description

The OSG 8595253 is a screw machine length drill bit designed for precision drilling in tight-clearance and production machining environments. Built from high speed steel (HSS) with a titanium nitride (TiN) coating, this bit delivers extended tool life and reduced friction across a range of metallic workpieces. The 130-degree faceted point angle and web-thinned geometry promote accurate entry and reduce thrust force. At 0.0995 inches in diameter (Wire Size 39), this bit is suited for machinists, toolroom technicians, and production drilling operations requiring tight-tolerance holes in steel, stainless steel, aluminum, and aluminum alloys.

The OSG 8595253 fits standard production and job-shop drilling applications where screw machine length bits are preferred for rigidity and runout control. The straight-cylindrical shank seats into standard drill chucks and collet holders without modification. Typical applications include through-hole and blind-hole drilling in steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. The fast spiral flute design promotes chip evacuation in these materials. This bit is sold individually and is part of OSG Series 1100, positioned as a high-performance grade option for demanding production environments.

Key Features

• High speed steel construction with TiN coating for extended wear resistance and reduced heat buildup
• 130-degree faceted drill point for accurate self-centering and reduced walking on entry
• Web-thinned, parallel web configuration reduces axial thrust and improves cutting efficiency
• Fast spiral flute geometry promotes chip evacuation in steel, stainless steel, and aluminum
• Straight-cylindrical shank fits standard chucks and collet systems without adaptation
• Screw machine length body provides increased rigidity and reduced deflection versus jobber-length bits

Compatibility

Designed for use in standard drill chucks and collet holders accepting a 3.00 mm straight-cylindrical shank. Suitable for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Part of OSG Series 1100, drill bit size range 0.0000 to 0.1000 decimal inch.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom technicians familiar with drill press, CNC, or hand-held power tool operation. 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 tooling. Coolant-through is not supported on this bit; apply cutting fluid externally as needed per shop practice for the workpiece material.