Cleveland C16535 Cobalt Jobber Drill Bit Size 33 135 Deg

Product Description

The CLEVELAND C16535 is a cobalt jobber length drill bit designed for high-performance drilling in tough materials. Built from M42 cobalt high-speed steel with a gold oxide coating, this bit handles the heat and wear demands of production and maintenance drilling. The 135-degree split point reduces walking and lowers thrust at entry, while the parabolic flute geometry improves chip evacuation and cutting efficiency. At 0.1130 inches in diameter (wire gauge size 33) with an overall length of 2-5/8 inches and a flute length of 1-1/2 inches, this is a general-purpose jobber format suited for machinists, maintenance technicians, and fabricators working on dense or abrasive workpieces.

This drill bit is rated for use in cast iron, non-ferrous metals, stainless steel, and steel. Its heavy-duty grade and M42 material make it well suited for applications where standard high-speed steel bits overheat or wear prematurely. Typical use cases include production drilling in machine shops, field maintenance drilling by millwrights or pipefitters, and fabrication work where stainless steel or hardened materials are regularly encountered. The straight-cylindrical shank fits standard drill chucks without adapters.

Key Features

• M42 cobalt construction for extended tool life in hard and abrasive materials
• 135-degree split point reduces thrust and eliminates center punch requirement on most materials
• Parabolic flute design improves chip flow and reduces heat buildup during deep drilling
• Gold oxide coating provides additional lubricity and corrosion resistance
• Web-thinned tapered web for lower cutting forces
• Meets ASME B94.11M and DIN 338 standards for consistent dimensional accuracy

Compatibility

Part of Cleveland Series 2075, this bit is dimensioned to ASME B94.11M and DIN 338 standards, making it a direct-fit replacement for any jobber length drill bit of wire gauge size 33 (0.1130 inches) used in standard drill chucks or drill press setups.

Installation Notes

Install into a keyed or keyless drill chuck, ensuring the straight-cylindrical shank is fully seated and securely tightened before operation. Use appropriate cutting fluid or coolant when drilling stainless steel or cast iron to prolong bit life, noting that coolant-through is not supported on this bit. Inspect the cutting edges before each use and replace if chipping or excessive wear is observed. Always wear appropriate eye protection and follow shop safety protocols when operating drilling equipment.