Osg 8595416 Screw Machine Drill Bit 0.1638 in Hss

Product Description

The OSG 8595416 is a screw machine length drill bit designed for high-performance metal drilling in production and job-shop environments. Built from high speed steel with a coated finish, this bit features a 120-degree faceted drill point and a web-thinned, tapered web configuration for reduced thrust and cleaner entry. The straight-cylindrical shank measures 6.00 millimeters in diameter, and the overall length is 66.00 millimeters (approximately 2.60 inches). With two spiral flutes and a regular spiral type, the 8595416 evacuates chips efficiently during through-hole and blind-hole drilling operations. Licensed machinists, tool-and-die technicians, and maintenance mechanics are the primary users of this bit.

This screw machine length drill bit is optimized for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. The shortened body of a screw machine length drill provides increased rigidity compared to jobber-length bits, making it a preferred choice for CNC machining centers, manual drill presses, and screw machine operations where chatter and deflection need to be minimized. The 0.1638-inch diameter falls within the 0.1500 to 0.2000 decimal inch size range of the OSG Series 1100 lineup.

Key Features

• High speed steel construction with coated finish for extended tool life on ferrous and non-ferrous materials
• 120-degree faceted drill point reduces walking and improves hole location accuracy
• Web-thinned, tapered web lowers cutting thrust and eases penetration into hard materials
• Screw machine length body provides greater rigidity and reduced deflection versus jobber-length drills
• Two spiral flutes with regular helix promote efficient chip evacuation
• Right-hand cut, straight-cylindrical shank compatible with standard drill chucks and collet holders

Compatibility

Designed as an OEM-style replacement and production drill within the OSG Series 1100 screw machine length family, suitable for standard drill chucks and collet holders accepting a 6.00-millimeter straight-cylindrical shank.

Installation Notes

This bit is installed by machinists and maintenance technicians in drill presses, CNC machining centers, and screw machines. Power down and lock out the machine before inserting or removing the bit from the chuck or collet. Ensure the shank is fully seated and the chuck is tightened to the machine specification before beginning a cut. Coolant-through is not supported on this bit; use external cutting fluid or mist coolant as appropriate for the workpiece material.