Hertel 04141214 Cobalt Jobber Drill Bit 15/32 Inch

Product Description

The HERTEL 04141214 is a cobalt jobber-length drill bit designed for heavy-duty holemaking in tough materials. Built from cobalt high-speed steel with a titanium nitride (TiN) coating, this bit handles harder workpieces where standard HSS bits wear prematurely. The 135-degree split point reduces walking at the start of a cut and lowers the thrust needed to enter the material. At 5.75 inches overall length with a 4.3125-inch flute, it falls within standard jobber proportions and fits most handheld and machine tool chucks. Right-hand spiral flutes clear chips efficiently during deep passes. Licensed trades and industrial machinists reach for this bit when drilling stainless, alloy steel, cast iron, and similarly hard stock.

This bit is sized at 15/32 inch (0.4688 inch decimal) with a straight-cylindrical shank matching the drill diameter, making it compatible with standard keyed and keyless chucks in that capacity range. Typical applications include fabrication shops, mechanical contractors, pipefitters, and electricians drilling through structural steel, plate, or heavy-gauge enclosures where a standard carbon or HSS bit would overheat. The heavy-duty grade rating makes it appropriate for production runs as well as one-off field repairs where bit longevity matters.

Key Features

• Cobalt construction resists heat buildup during extended cuts in hard metals
• TiN coating reduces friction and extends cutting edge life
• 135-degree split point self-centers and reduces feed pressure
• Web-thinned, tapered-web design lowers cutting resistance at the tip
• Regular spiral flute geometry provides reliable chip evacuation
• Straight-cylindrical shank seats securely in standard drill chucks

Compatibility

Designed as a standard jobber-length drill bit for use in handheld drills, drill presses, and CNC machine tool spindles accepting a 15/32-inch straight shank.

Installation Notes

This bit is installed and used by machinists, pipefitters, electricians, and mechanical contractors performing metal drilling operations. Secure the shank fully in a properly rated chuck before operation. Always power down and de-energize any machine or tool before bit changes. Use cutting fluid or a suitable coolant when drilling hard alloys to preserve coating life and cutting geometry.