Cleveland C16791 Taper Length Drill Bit 19/64 in Cobalt

Product Description

The CLEVELAND C16791 is a taper length cobalt drill bit engineered for demanding metal-cutting applications. Built to the Series 2575 specification, it features a 19/64 inch (0.2969 inch) diameter, a 135-degree split point, and a parabolic flute geometry that promotes aggressive chip evacuation and reduced thrust in deep-hole drilling. The M42 cobalt steel construction provides heat resistance and edge retention well beyond standard high-speed steel, making it a practical choice for hard or abrasive materials. It is used by machinists, millwrights, and maintenance technicians working in production or field environments.

This bit is suited for drilling aluminum, brass, carbon steel, cast iron, nickel alloy, plastic, stainless steel, and tool steel. The taper length body gives additional reach compared to a jobber-length bit without sacrificing rigidity. The straight shank is compatible with standard drill chucks and collet holders. It is a heavy-duty grade bit appropriate for manual drill presses, CNC machines, and portable magnetic drills where consistent hole quality is required in ferrous and non-ferrous stock.

Key Features

• M42 cobalt construction for heat resistance and extended tool life in hard materials
• 135-degree split point reduces walking and lowers required thrust at entry
• Parabolic flute design improves chip flow and reduces clogging in deep holes
• Web-thinned, tapered web configuration for efficient cutting geometry
• Taper length body provides added reach versus standard jobber-length bits
• Right-hand cut, straight shank fits standard drill chucks and collet systems
• Meets ASME B94.11M and DIN 340 standards

Compatibility

Designed for use in standard drill chucks and collet holders accepting a 0.2969 inch straight shank. Suitable for drilling aluminum, brass, carbon steel, cast iron, nickel alloy, plastic, stainless steel, and tool steel across manual and CNC drilling setups.

Installation Notes

Installation of this drill bit should be performed by qualified machinists or maintenance technicians familiar with cutting tool setup. Ensure the drill chuck or collet is fully tightened and the workpiece is securely clamped before operation. Use appropriate cutting fluid or coolant for the material being drilled, particularly with stainless steel or nickel alloys, to manage heat and prolong tool life. Inspect the cutting edges before each use and replace the bit if chipping or dulling is observed.