Osg 8595168 Screw Machine Drill Bit 0.0661 in Hss

Product Description

The OSG 8595168 is a screw machine length drill bit engineered for high-performance drilling in metalworking and machining applications. It measures 0.0661 inches (1.68 mm) in diameter with an overall length of 42.00 mm and a flute length of 10.00 mm. The bit is manufactured from high speed steel (HSS) with a coated finish and features a 140-degree faceted drill point for improved penetration and reduced thrust. A web-thinned, tapered web configuration enhances chip evacuation and reduces cutting resistance. This bit is sold individually and is suited for use in CNC machining centers, drill presses, and handheld power tools where precision small-diameter drilling is required.

The OSG 8595168 is designed for screw machine length applications where a shorter, more rigid drill is needed to maintain accuracy in production drilling. It performs well in steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate workpiece materials. The 5xD flute-to-diameter ratio supports efficient chip removal across these materials. Machinists, tool and die makers, and precision fabricators working in job shops or production environments are the primary users of this bit.

Key Features

• 0.0661 inch (1.68 mm) cutting diameter with a diameter tolerance of +0 to -0.014 mm for tight-tolerance work
• 140-degree faceted drill point reduces walking and improves entry accuracy on hard materials
• Web-thinned tapered web lowers thrust requirements and improves chip flow
• Two-flute spiral design with regular spiral type for balanced cutting in metals
• Straight-cylindrical shank with 3.00 mm shank diameter fits standard collets and chucks
• High speed steel construction with coated finish extends tool life in ferrous and non-ferrous materials

Compatibility

Designed as an OSG Series 1100 screw machine length drill bit compatible with workpiece materials including steel, stainless steel, aluminum, aluminum alloy, and aluminum silicate.

Installation Notes

This drill bit should be installed by a qualified machinist or tooling technician in a properly sized collet or drill chuck that matches the 3.00 mm straight-cylindrical shank. Confirm the spindle is fully stopped before changing or seating the bit. Use appropriate cutting fluid or coolant as recommended for the workpiece material, noting that this bit does not support through-coolant delivery. Inspect the cutting edges and web before each use and replace the bit if chipping or excessive wear is observed.