Cleveland C16664 Jobber Drill Bit No 50 Cobalt Tin

Product Description

The CLEVELAND C16664 is a jobber length drill bit designed for precision drilling in metal and hard materials. Built from M42 cobalt high-speed steel with a titanium nitride (TiN) coating, this bit delivers extended tool life and heat resistance in demanding production and maintenance applications. It carries a No. 50 wire gauge size, equating to 0.0700 inches in diameter, with an overall length of 2 inches and a 135-degree split point. The parabolic flute geometry promotes efficient chip evacuation, and the web-thinned, tapered web construction reduces thrust requirements at entry. Licensed HVAC technicians, plumbers, machinists, and electrical contractors reach for cobalt TiN-coated bits when drilling stainless, hardened steel, cast iron, or other tough substrates that defeat standard HSS tooling.

This bit suits light-duty through heavy-duty drilling tasks in industrial, commercial, and field service settings. The straight-cylindrical shank fits standard 3-jaw drill chucks without requiring a special collet or adapter. With a 1-inch flute length and 1-inch shank length, the C16664 is sized for use in handheld drills, drill presses, and CNC machining centers where a No. 50 wire size hole is required. Typical applications include pilot holes, through-holes in sheet metal, and precision work on electrical enclosures, HVAC components, and mechanical assemblies.

Key Features

• M42 cobalt steel construction resists heat and wear in hard-material drilling
• Titanium nitride (TiN) coating extends surface hardness and reduces friction
• 135-degree split point reduces walking and lowers required entry thrust
• Parabolic flute design improves chip clearing and reduces clogging in deep holes
• Web-thinned, tapered web minimizes cutting resistance at the drill tip
• Straight-cylindrical shank fits standard drill chucks without adapters
• Conforms to ASME B94.11M and DIN 338 standards

Compatibility

Designed as an OEM-style jobber length drill bit for use in any standard drill chuck accepting a 0.0700-inch straight shank, including handheld electric drills, drill presses, and CNC spindles requiring a No. 50 wire gauge bit.

Installation Notes

Secure the straight-cylindrical shank firmly in a calibrated 3-jaw chuck before operation and verify chuck runout is within acceptable tolerance to maintain hole accuracy. Always wear eye protection and secure the workpiece to prevent rotation during drilling. Use appropriate cutting fluid or coolant when drilling stainless steel or hardened alloys to extend bit life, noting that this bit does not have through-coolant capability. Inspect the cutting edges and TiN coating for wear before each use; a dull or chipped edge on cobalt tooling should be replaced rather than reworked in field conditions.