Osg 8595186 Screw Machine Drill Bit 0.0732 Inch Hss

Product Description

The OSG 8595186 is a screw machine length drill bit designed for high-performance drilling in metal fabrication and machining applications. Built from high speed steel (HSS) with a coated finish, it measures 0.0732 inches (1.86 mm) in diameter with an overall length of approximately 1.69 inches (43 mm). The 140-degree faceted drill point and web-thinned, tapered web configuration reduce entry force and improve centering accuracy. Two spiral flutes with a 5xD flute-to-diameter ratio clear chips efficiently during through-hole and blind-hole operations. This bit is suited for machinists, tool-and-die technicians, and production drilling environments requiring consistent, repeatable results in tight-tolerance work.

The OSG 8595186 is intended for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Its screw machine length profile, shorter than a jobber-length bit, provides increased rigidity in drill presses, CNC machining centers, and turret lathes where minimal deflection is critical. The straight-cylindrical shank with a 3.00 mm (0.118 inch) diameter fits standard collets and chucks used in production machining setups. Right-hand cut geometry is standard for conventional spindle rotation.

Key Features

• 0.0732 inch (1.86 mm) diameter with a tight tolerance of +0 to -0.014 mm for precision bore sizing
• 140-degree faceted drill point with web thinning reduces thrust and improves self-centering
• High speed steel construction with coated finish for extended tool life in ferrous and non-ferrous materials
• Screw machine length body increases rigidity and reduces deflection compared to jobber-length bits
• Two spiral flutes with regular spiral type promote efficient chip evacuation
• Compatible with primary workpiece materials including steel, stainless steel, aluminum, and aluminum alloy

Compatibility

Designed for use in drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Part of the OSG Series 1100 screw machine drill bit line.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or tool operators familiar with proper spindle speeds and feed rates for the workpiece material. Secure the straight-cylindrical shank firmly in a collet or drill chuck rated for the shank diameter before operation. Inspect the cutting edges for wear or damage before each use and replace the bit if chipping or dulling is observed. Coolant-through capability is not available on this bit, so external coolant or cutting fluid application is recommended for extended runs in steel or stainless steel.