Cleveland C16533 Jobber Drill Bit Wire 31 Cobalt

Product Description

The CLEVELAND C16533 is a jobber length twist drill bit designed for demanding metal-cutting applications. Built from M42 cobalt high-speed steel with a gold oxide coating, this bit handles tough materials where standard HSS bits wear prematurely. It carries a wire gauge size of 31, corresponding to 0.1200 inches in decimal, with a 135-degree split point that reduces walking and requires no center punch on most setups. The parabolic flute geometry evacuates chips efficiently during deep-hole drilling. This is a heavy-duty grade bit conforming to ASME B94.11M and DIN 338 standards, suited for production or field use by machinists, pipefitters, and maintenance mechanics.

The C16533 is built for drilling cast iron, non-ferrous metals, stainless steel, and carbon steel. The cobalt M42 material grade makes it a practical choice for stainless and work-hardening alloys where heat buildup shortens tool life. The straight-cylindrical shank fits standard three-jaw drill chucks on handheld drills and drill presses. A tapered web with web thinning reduces thrust force, making this bit effective in both bench and portable drill applications common in HVAC, plumbing, and general fabrication trades.

Key Features

• M42 cobalt construction for heat resistance in hard and work-hardening metals
• 135-degree split point reduces thrust and eliminates walking without a center punch
• Parabolic flute design improves chip evacuation in deep holes
• Gold oxide coating provides lubricity and corrosion resistance during storage and use
• Web-thinned tapered web lowers cutting resistance and extends tool life
• Conforms to ASME B94.11M and DIN 338 dimensional standards

Compatibility

Designed for use with any standard drill chuck accepting a 0.1200-inch straight-cylindrical shank. Primary workpiece materials include cast iron, non-ferrous metal, stainless steel, and steel. Part of the Cleveland Series 2075 heavy-duty cobalt jobber drill line.

Installation Notes

Install into a properly sized drill chuck and tighten securely before operation. Secure the workpiece to prevent rotation during drilling. Apply appropriate cutting fluid when drilling stainless steel or cast iron to manage heat and extend bit life. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.