Osg 8595183 Screw Machine Drill Bit 0.072in Hss 140deg

Product Description

The OSG 8595183 is a screw machine length drill bit designed for high-performance drilling in metal and alloy workpieces. Built from high speed steel with a coated finish, it features a 0.072-inch (1.83 mm) diameter, a 140-degree faceted drill point, and a web-thinned tapered web configuration that reduces thrust and improves chip evacuation. The straight-cylindrical shank measures 3.00 mm in diameter and accepts standard chucks without modification. This bit suits production drilling environments where a shorter-than-jobber-length tool improves rigidity and precision. Typical installers and users include machinists, tool-and-die technicians, and maintenance professionals working on close-tolerance bore applications.

This drill bit is suited for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate. The screw machine length profile provides greater stiffness than standard jobber-length bits, making it a practical choice for CNC drilling centers, turret lathes, and manual drill presses where short-reach rigidity matters. The 2-flute spiral design promotes consistent chip clearance throughout the cut. OSG Series 1100 bits in this diameter range are commonly selected for small-bore work in light manufacturing and precision repair applications.

Key Features

• 0.072-inch (1.83 mm) drill diameter with a tolerance of +0 to -0.014 mm for close-tolerance bore work
• 140-degree faceted drill point reduces walking and improves centering on hard materials
• Web-thinned tapered web lowers thrust force and extends tool life in steel and stainless steel
• High speed steel construction with coated finish for improved surface hardness and wear resistance
• Screw machine length (overall length 43.00 mm) delivers added rigidity over standard jobber-length bits
• Right-hand cut, 2-flute regular spiral design promotes efficient chip evacuation

Compatibility

OSG Series 1100 screw machine length drill bit rated for use in steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Fits standard straight-shank chucks accepting a 3.00 mm shank diameter.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with proper drill press or CNC spindle setup. Secure the straight-cylindrical shank firmly in a compatible chuck before operation and verify runout is within acceptable limits for the application. Do not exceed the rated speed range for the workpiece material and bit diameter. Coolant-through is not supported on this bit; use appropriate external cutting fluid when drilling steel or stainless steel to manage heat.