Cleveland C11411 Jobber Drill Bit Size 11 Cobalt

Product Description

The CLEVELAND C11411 is a jobber-length drill bit designed for demanding metal-cutting applications in professional trade and industrial environments. Built from M42 cobalt high-speed steel with a TiAlN coating, this bit handles tough materials including cast iron and stainless steel. It measures 3.5 inches overall length with a 0.1910-inch diameter and features a 135-degree split point for accurate starts without center-punching. The parabolic flute geometry improves chip evacuation and reduces heat buildup during deep drilling operations. Machinists, maintenance technicians, and metalworking tradespeople rely on this bit for production drilling in ferrous and hard alloy materials.

The C11411 is suited for drilling cast iron, stainless steel, and other hard ferrous materials where standard HSS bits fall short. The straight-cylindrical shank fits standard drill chucks in bench drill presses, CNC machines, and handheld drills. The 2.3125-inch flute length accommodates jobber-depth holes without excessive bit exposure. Its parabolic flute profile is especially effective in gummy or stringy metals where chip packing is a common problem. This bit is sold individually and is appropriate for shop use, field maintenance, and light production work.

Key Features

• M42 cobalt steel construction for extended tool life in hard and abrasive materials
• TiAlN coating increases surface hardness and heat resistance at the cutting edge
• 135-degree split point enables self-centering entry and reduces walking on hard surfaces
• Parabolic flute design promotes fast chip removal and reduces heat in deep holes
• Web-thinned tapered web configuration lowers thrust requirements during drilling
• Meets ASME B94.11M and DIN 338 standards for jobber-length drill geometry

Compatibility

Designed as an OEM-style jobber-length drill bit compatible with standard straight-cylindrical shank drill chucks. Primary workpiece materials are cast iron and stainless steel as specified by the manufacturer.

Installation Notes

This drill bit is installed and operated by machinists and trade technicians using standard drill chucks on drill presses, milling machines, or handheld power drills. Always secure the workpiece before drilling and use appropriate cutting fluid or coolant when drilling stainless steel or cast iron to preserve edge life. Inspect the cutting edge for wear before each use and replace when the point shows signs of chipping or rounding. Refer to your machine manufacturer guidelines for appropriate feed rates and spindle speeds for cobalt bits at this diameter.