Cleveland C16652 Jobber Drill Bit 40 Cobalt Tin

Product Description

The CLEVELAND C16652 is a jobber-length drill bit designed for precision drilling in metal, alloy, and hard-material applications. Built from M42 cobalt high-speed steel with a titanium nitride (TiN) coating, this bit delivers extended tool life and heat resistance under demanding conditions. The 135-degree split point starts on contact without a center punch, reducing walking and improving positional accuracy. With a wire gauge size of 40 and a decimal diameter of 0.098 inches, it suits tight-tolerance work where standard HSS bits wear prematurely. Licensed tradespeople and machinists in HVAC fabrication, plumbing rough-in, and electrical panel work reach for cobalt bits when drilling through harder base metals.

The C16652 is suited for drilling stainless steel, hardened alloys, cast iron, and other ferrous materials where heat buildup causes standard HSS bits to fail. The parabolic flute geometry promotes fast chip evacuation, reducing heat accumulation and the risk of bit binding in deep holes. At 2.375 inches overall length with a 1.375-inch flute, this bit fits standard drill chucks and magnetic drill presses used in light fabrication and field service environments. It meets ASME B94.11M and DIN 338 standards, making it appropriate for shops operating under documented quality requirements.

Key Features

• M42 cobalt steel construction for heavy-duty drilling in hard and abrasive materials
• Titanium nitride (TiN) coating extends cutting life and reduces friction
• 135-degree split point eliminates walk and reduces entry burr without center punching
• Parabolic flute design accelerates chip removal and reduces heat buildup in deep cuts
• Web-thinned, tapered web configuration reduces cutting resistance and thrust force
• Straight-cylindrical shank fits standard 3-jaw drill chucks without adapters
• Meets ASME B94.11M and DIN 338 dimensional and performance standards

Compatibility

Designed as a heavy-duty jobber-length drill bit for use in any standard drill chuck accepting a 0.098-inch straight-cylindrical shank, including handheld drills, drill presses, and magnetic base drills used in metal fabrication and trade service work.

Installation Notes

This bit is installed and removed by a licensed machinist or qualified tradesperson using a standard keyed or keyless drill chuck. Always ensure the drill is fully powered down and unplugged or locked out before changing bits. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend tool life and maintain dimensional tolerance. Verify workpiece is clamped securely before drilling to prevent bit grab and material movement.