Osg 8650500 Screw Machine Drill Bit 0.1969 in Hss

Product Description

The OSG 8650500 is a screw machine length drill bit designed for high-performance drilling in metal fabrication and machining applications. Built from Vanadium High Speed Steel with a WD1 finish, this bit measures 0.1969 inches (5.00 mm) in diameter with an overall length of 2.756 inches (70.00 mm). The 120-degree faceted point angle and S-thinned web reduce entry force and improve centering accuracy. A fast spiral flute with straight-cylindrical shank and 6.00 mm shank diameter makes this bit compatible with standard drill chucks and CNC tool holders. Machinists, toolroom technicians, and production drilling operators are the primary users.

This drill bit is suited for drilling aluminum, carbon steel, high nickel alloy, stainless steel, and titanium in production and job-shop environments. The screw machine length profile — shorter than jobber length — provides added rigidity and reduced deflection in tight setups, turret lathes, screw machines, and drill press fixtures. The WD1 surface treatment improves lubricity and wear resistance, making it effective for both dry and lubricated cutting in moderate to demanding material grades.

Key Features

• Vanadium High Speed Steel construction rated for high-performance metal cutting
• WD1 finish improves surface lubricity and extends tool life
• 120-degree faceted point with S-thinned web for fast, accurate entry
• Fast spiral flute geometry promotes efficient chip evacuation
• Straight-cylindrical shank fits standard chucks and CNC holders
• Screw machine length body provides rigidity and reduces deflection in close-clearance setups

Compatibility

OSG Series 1150 drill bit designed for drilling aluminum, carbon steel, high nickel alloy, stainless steel, and titanium. Fits standard straight-shank drill chucks and CNC tool holders accepting a 6.00 mm shank diameter.

Installation Notes

Installation and tool changes should be performed with the machine fully powered down and the spindle locked. Secure the straight-cylindrical shank firmly in the chuck or collet to the full grip depth before operation. Follow machine manufacturer torque and runout specifications for tool holding. Inspect the cutting edges and web before each use — chipped or worn geometry on HSS tooling should be reground or the bit replaced before resuming production work.