Osg 8595199 Screw Machine Drill Bit 0.0785 in Hss

Product Description

The OSG 8595199 is a screw machine length drill bit designed for high-performance drilling in metalworking and machining applications. Built from high speed steel with a coated finish, this bit features a 140-degree faceted point angle and a web-thinned, tapered web configuration that reduces thrust and improves chip evacuation. The straight-cylindrical shank seats securely in standard drill chucks and CNC tool holders. With a 0.0785 inch (number 47 wire gauge) diameter and a 5xD flute-to-diameter ratio, it is engineered for precision hole-making in production and repair environments. Machinists, tool-and-die technicians, and maintenance mechanics are the primary users.

This drill bit is suited for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. The screw machine length format provides a shorter, more rigid profile compared to jobber length bits, making it well suited for drill press, turret lathe, and CNC machining center applications where tool deflection and runout must be minimized. It is sold individually and is part of the OSG Series 1100 lineup.

Key Features

• 0.0785 inch (number 47 wire gauge, 1.99 mm) diameter with a tolerance of plus 0 to minus 0.014 mm
• 140-degree faceted drill point for reduced thrust and self-centering entry
• Web-thinned tapered web for improved chip flow and lower cutting force
• High speed steel construction with a coated finish for extended tool life
• Screw machine length body offers increased rigidity over jobber length alternatives
• Right-hand cut, 2-flute spiral configuration compatible with standard spindle rotation

Compatibility

Designed for use in workpiece materials including steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate. Fits any drill chuck or collet accepting a 3.00 mm straight-cylindrical shank. Part of OSG Series 1100.

Installation Notes

Installation and use should be performed by qualified machinists or maintenance technicians familiar with rotating cutting tools. Secure the shank fully in the chuck or collet before operation and verify runout with a dial indicator when precision is critical. Always power down and lock out the machine spindle before changing tooling. Follow the machine manufacturer's recommended feed and speed parameters for the workpiece material being drilled.