Osg 8650300 Screw Machine Drill Bit 0.1181 in Hss

Product Description

The OSG 8650300 is a screw machine length drill bit designed for high-performance drilling in metalworking applications. Built from coated high speed steel, it measures 3.00 mm (0.1181 inches) in diameter with an overall length of 48.00 mm (1.89 inches) and a flute length of 16.00 mm (0.63 inches). The 130-degree faceted point angle and web-thinned, tapered web configuration reduce entry force and improve chip evacuation. This bit is suited for machinists, tool-and-die technicians, and production drilling operations requiring consistent, tight-tolerance hole making in ferrous and non-ferrous materials.

The 8650300 is built for use on steel, alloy steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Its screw machine (stub) length body provides added rigidity compared to jobber-length bits, making it a practical choice for CNC machining centers, drill presses, and manual lathes where shorter reach and reduced deflection are priorities. The 3xD flute-to-diameter ratio supports efficient chip clearance in shallow-to-moderate depth holes.

Key Features

• 3.00 mm (0.1181 inches) diameter with diameter tolerance of +0 to -0.014 mm for consistent hole sizing
• 130-degree faceted drill point reduces walking and improves penetration on hard materials
• Web-thinned, tapered web configuration lowers thrust requirements and aids chip flow
• Coated high speed steel construction for extended tool life in steel and aluminum applications
• Screw machine (stub) length body increases rigidity and reduces deflection at the cutting zone
• Right-hand spiral flute with 3xD ratio for reliable chip evacuation in production drilling

Compatibility

Designed for use on steel, alloy steel, aluminum, aluminum alloy, and aluminum silicate workpieces. Part of the OSG Series 1150 high-performance screw machine drill line. Fits any standard straight-shank chuck accepting a 3.00 mm shank diameter.

Installation Notes

Installation and use of this drill bit should be performed by a qualified machinist or tool operator familiar with cutting tool setup procedures. Verify chuck runout and shank seating before operation, and confirm spindle speed and feed rate are appropriate for the workpiece material and bit diameter. Do not exceed the manufacturer-rated cutting parameters for the workpiece material. Inspect the cutting edge for wear or chipping before each use and replace the bit if damage is present.