Osg 220-2610 Solid Carbide Jobber Drill Bit Letter G

Product Description

The OSG 220-2610 is a solid carbide jobber-length drill bit sized to Letter G (0.2610 inch / 6.63 mm) with a 118-degree web-thinned point. Built from solid carbide throughout, it delivers the rigidity and edge retention needed for production drilling in ferrous and non-ferrous materials. The bright, uncoated finish suits applications where coating compatibility or post-process inspection matters. Two spiral flutes with a regular helix evacuate chips efficiently through a 2.125-inch flute length. Overall length is 3.5 inches. The straight-cylindrical shank fits standard drill chucks without adapters. Machinists, maintenance technicians, and fabricators working with CNC machines or drill presses are the typical end users.

The OSG 220-2610 is rated for general-purpose drilling in a broad range of workpiece materials including steel, alloy steel, stainless steel, cast iron, aluminum, aluminum alloy, and aluminum silicate. Typical operations include blind-hole drilling, cross-hole drilling, standard through drilling, and self-centering applications. The web-thinned point reduces thrust force at entry, making it well suited for hand-fed setups and programmed CNC cycles alike. This bit belongs to OSG Series 220D and covers the 0.2500 to 0.3000 decimal-inch size range.

Key Features

• Solid carbide construction for superior hardness and wear resistance versus high-speed steel
• 118-degree web-thinned point reduces entry thrust and improves self-centering behavior
• Bright, uncoated finish compatible with a wide range of cutting fluids and workpiece materials
• 2-flute regular spiral design promotes consistent chip evacuation in blind and through holes
• Straight-cylindrical shank fits standard drill chucks without requiring a reducer or adapter
• Suitable for blind-hole, cross-hole, through-drilling, and self-centering tool applications

Compatibility

Designed as a general-purpose jobber drill for use in CNC machining centers, drill presses, and handheld drill setups capable of accepting a straight-cylindrical shank. Rated for steel, alloy steel, stainless steel, cast iron, aluminum, aluminum alloy, and aluminum silicate workpieces per OSG Series 220D specifications.

Installation Notes

Installation and use of this drill bit should be performed by qualified machinists or maintenance technicians familiar with proper tooling practices. Secure the straight-cylindrical shank firmly in a calibrated chuck before operation and verify runout is within acceptable limits. Confirm spindle speed and feed rate are appropriate for the workpiece material and bit diameter before initiating a cut. This bit does not support coolant-through delivery; apply cutting fluid externally as required by the workpiece material and operation type.