Osg 8595107 Screw Machine Drill Bit 0.042 in Hss

Product Description

The OSG 8595107 is a screw machine length drill bit engineered for precision drilling in metalworking and machining applications. Built from high-speed steel (HSS) with a coated finish, this bit features a 140-degree faceted point angle and a web-thinned, tapered web configuration that reduces entry force and improves chip evacuation. The straight-cylindrical shank measures 3.00 millimeters in diameter, and the overall length is 39.00 millimeters (approximately 1.54 inches). With a 5xD flute-to-diameter ratio and regular spiral flute geometry, it delivers consistent performance in high-production environments. Machinists and toolroom technicians are the primary users.

This drill bit is designed for use in CNC machining centers, drill presses, and screw machine setups where short overall length and rigidity are required. It is suited for drilling steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpiece materials. The screw machine length format minimizes deflection, making it well-suited for tight-tolerance hole production in production shop and job shop environments alike. The right-hand cut direction is standard for conventional spindle rotation on most machine tools.

Key Features

• Wire gauge size #58, 0.0420 decimal inch diameter with a tolerance of +0 to -0.014 mm
• 140-degree faceted point angle with web-thinned, tapered web for reduced thrust and cleaner entry
• High-speed steel construction with coated finish for improved wear resistance
• 2-flute regular spiral configuration with a 5xD flute-to-diameter ratio for efficient chip removal
• Straight-cylindrical shank for secure chuck retention in standard collets and drill chucks
• No coolant-through design; suitable for conventional flood or dry cutting setups

Compatibility

Designed for use in screw machine and CNC drilling operations on steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpiece materials. Part of the OSG Series 1100 product line.

Installation Notes

Installation and use should be performed by qualified machinists or toolroom personnel familiar with machine tool operation. Ensure the spindle is fully stopped and the machine is powered down before inserting or removing the bit from the chuck or collet. Verify shank diameter compatibility with the holding device before use. Follow applicable shop safety standards and machine manufacturer guidelines for feed rate and spindle speed selection.