Osg 10201005 Screw Machine Drill Bit 0.201 in Cobalt Hss

Product Description

The OSG 10201005 is a screw machine length drill bit designed for high-performance drilling in steel and alloy steel applications. Built from cobalt high speed steel with a coated finish, it delivers extended tool life and heat resistance in demanding production environments. The bit features a 130-degree drill point angle, two spiral flutes, and an R-thinned web for improved chip evacuation and reduced thrust. At 3 inches overall length with a 1-3/16-inch flute length, this stub-style bit is well suited to short-reach, high-rigidity setups on drill presses, CNC machines, and screw machines. It is installed and used by machinists, tool-and-die technicians, and precision metalworking professionals.

This drill bit is intended for use in steel and alloy steel workpieces where a screw machine length provides added rigidity over jobber-length alternatives. The straight-cylindrical shank fits standard drill chucks without modification. The 3xD flute-to-diameter ratio and regular spiral geometry support consistent chip clearance during short-hole drilling operations typical in production machining, fixture building, and general metalworking shops.

Key Features

• Cobalt high speed steel construction for heat and wear resistance in ferrous materials
• 130-degree drill point angle suited to steel and alloy steel workpieces
• R-thinned web reduces axial thrust and improves penetration
• Screw machine length body provides added rigidity versus jobber-length bits
• Coated finish extends tool life in production drilling cycles
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a high-performance OEM-style drill bit for use in steel and alloy steel workpieces; fits any standard drill chuck accepting a straight-cylindrical shank in the 0.201-inch diameter range.

Installation Notes

Installation is performed by machinists or tooling technicians on drill presses, turret lathes, CNC machining centers, or dedicated screw machines. Secure the straight-cylindrical shank fully in the drill chuck and verify runout before beginning a production run. Power down and lock out the machine before changing or inspecting the bit. Follow applicable shop safety standards and consult the machine manufacturer guidelines for recommended speeds and feeds for cobalt high speed steel tooling in the target workpiece material.