Hertel 74132200 Cobalt Drill Bit Size 23 0.154 in 135 Deg

Product Description

The HERTEL 74132200 is a screw machine length drill bit designed for high-speed, close-tolerance drilling in metalworking applications. It is manufactured from cobalt high-speed steel with a titanium aluminum nitride (TiAlN) coating, which extends cutting life and reduces heat buildup in demanding materials. The drill cuts at 0.154 inches (wire size 23) and features a 135-degree split point for fast penetration and reduced walking without a center punch. Overall length is 2-1/16 inches, making it suited for drill press and CNC machine tool use where clearance is a factor. Installed by machinists and tool-and-die professionals.

This bit is used in screw machine operations, CNC machining centers, and manual drill press setups where short-length rigidity reduces deflection. The 1-inch flute length and straight cylindrical shank are compatible with standard chucks and collet holders. It is most commonly applied when drilling carbon steel, alloy steel, stainless steel, cast iron, and other ferrous materials where cobalt and TiAlN coating provide a measurable advantage over standard HSS tooling. The regular spiral and parallel web configuration support consistent chip evacuation in through-hole and blind-hole drilling scenarios.

Key Features

• Cobalt high-speed steel construction for improved heat and wear resistance over standard HSS
• TiAlN coating reduces friction and extends tool life in ferrous and hard materials
• 135-degree split point reduces thrust force and minimizes drill walking at entry
• Web-thinned parallel web supports clean chip evacuation and consistent hole quality
• Screw machine (stub) length provides added rigidity and reduced deflection
• Straight cylindrical shank fits standard drill chucks and collet holders without adapters

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for screw machine and CNC machining applications requiring a wire gauge size 23 (0.154 inch) hole in ferrous and hard materials.

Installation Notes

Installation and use should be performed by qualified machinists or tool operators familiar with drill press, turret lathe, or CNC machining center setup. Ensure the machine spindle is fully stopped and the chuck or collet is properly tightened before operation. Verify spindle speed is appropriate for the workpiece material and drill diameter before engaging the cut. Do not exceed the rated cutting speed for cobalt tooling in the specific material being drilled.