Osg 215-2720 Screw Machine Drill Bit 0.272 in Carbide

Product Description

The OSG 215-2720 is a solid carbide screw machine length drill bit designed for precision drilling in metalworking and machining applications. Built to Series 215 specifications, it features a 0.272 inch (Letter I) diameter, a 135-degree split point with web thinning, and a slow spiral flute configuration. The straight-cylindrical shank is compatible with standard drill chucks and collet holders. At 2-11/16 inches overall length with a 1-1/2 inch flute length, this stub-style bit provides added rigidity over jobber-length equivalents. It ships bright and uncoated with a right-hand cut. Machinists, tool and die technicians, and CNC operators install this bit in production and job-shop environments.

This drill bit is rated for use in steel, alloy steel, stainless steel, cast iron, aluminum silicate, nickel alloy, titanium, and titanium alloy workpieces. The 5xD flute-to-diameter ratio suits general-purpose drilling at moderate depths. The screw machine length body improves stability in short-reach setups and reduces deflection when entering tough alloys. It is a general purpose tool suited to both manual drill press work and CNC machining centers where rigidity and hole accuracy are priorities.

Key Features

• Solid carbide construction for durability in ferrous and non-ferrous alloys
• 135-degree standard point angle with web thinning for easier penetration and reduced thrust
• Slow spiral flute promotes chip evacuation in tough materials such as stainless steel and nickel alloy
• Straight-cylindrical shank fits standard chucks and collet tooling without adapters
• Tapered web configuration adds core strength along the flute length
• Bright/uncoated finish allows direct inspection of tool wear during service

Compatibility

Designed as a general-purpose OEM-style solid carbide drill bit for use in standard drill chucks and collet holders accepting a straight-cylindrical shank in the 0.250 to 0.300 inch diameter range.

Installation Notes

A licensed machinist or qualified CNC technician should verify spindle speed and feed rate against the workpiece material before use. Ensure the machine spindle is fully stopped and locked out before changing or inspecting the bit. Secure the shank fully within the chuck or collet to the recommended grip depth to prevent pullout under load. Coolant-through is not supported on this bit, so external flood or mist cooling should be applied when drilling stainless steel, nickel alloy, or titanium.