Osg 8595115 Screw Machine Drill Bit 0.0453 in Hss

Product Description

The OSG 8595115 is a screw machine length drill bit designed for high-performance drilling in metalworking applications. It features a 0.0453 inch (1.15 mm) diameter, a 140-degree faceted drill point, and a two-flute spiral configuration ground from high speed steel. The shortened screw machine length body improves rigidity and reduces deflection in close-tolerance work. A web-thinned, tapered web design lowers thrust requirements and improves chip evacuation. This bit is suited for production environments and machine-tool use where consistent hole quality in metal stock is required.

The OSG 8595115 is intended for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Its straight-cylindrical shank seats directly into standard drill chucks and collets on drill presses, CNC machining centers, and screw machines. The 5xD flute-to-diameter ratio and regular spiral flute geometry support chip removal in short-hole drilling cycles. This is a single-piece, individually packaged bit aimed at production machinists and tool crib operations requiring a high-performance small-diameter drill.

Key Features

• 0.0453 inch (1.15 mm) diameter with tolerance of +0 to -0.014 mm for close-tolerance hole sizing
• 140-degree faceted drill point reduces thrust and improves self-centering on hard metals
• Web-thinned tapered web lowers cutting resistance and aids chip flow
• Two-flute regular spiral geometry supports efficient chip evacuation in short-hole drilling
• Straight-cylindrical shank fits standard drill chucks and collets without adapters
• High speed steel construction with coating for extended tool life in ferrous and non-ferrous materials

Compatibility

Designed as an OEM-style screw machine length drill bit suitable for use in standard drill chucks and collets accepting a 3.00 mm straight-cylindrical shank across drill presses, CNC machining centers, and screw machines.

Installation Notes

This bit is installed by machinists and tool room technicians in machine-tool setups. Ensure the machine spindle is fully stopped and locked out before changing tooling. Seat the straight shank fully into the chuck or collet and verify runout before beginning a drilling cycle. Coolant-through is not supported on this bit; apply cutting fluid externally when drilling stainless steel or hard alloys to manage heat and extend tool life.