Cleveland C16783 Taper Length Drill Bit 11/64 Cobalt

Product Description

The CLEVELAND C16783 is a taper length cobalt drill bit designed for heavy-duty metal drilling applications in industrial and trade environments. Built to Series 2575 specifications, it features an 11/64 inch diameter with a 135-degree split point that reduces walking and allows drilling without a center punch. The parabolic flute geometry promotes faster chip evacuation and cooler cutting, making it well suited for interrupted cuts and deep-hole drilling. At 5.75 inches overall length with a 3.375-inch flute, this bit provides added reach compared to jobber-length alternatives. It is installed and used by machinists, pipefitters, maintenance mechanics, and general fabricators.

This bit is rated for use across a broad range of materials including aluminum, brass, carbon steel, cast iron, nickel alloy, plastic, stainless steel, and tool steel. The cobalt construction gives it elevated heat resistance compared to standard high-speed steel, making it a reliable choice when drilling harder alloys or working in higher-cycle production environments. The straight shank seats directly into standard drill chucks without adapters.

Key Features

• 11/64 inch diameter with a tolerance of +0.0000 to -0.0007 inches for consistent hole sizing
• 135-degree split point reduces thrust and eliminates the need for center-punching on most surfaces
• Parabolic flute profile accelerates chip removal and reduces heat buildup
• Cobalt M42 material grade provides superior hardness and heat resistance for tough alloys
• Web-thinned, tapered web configuration lowers cutting resistance and extends tool life
• Meets ASME B94.11M and DIN 340 standards; referenced to DIN 338 specification

Compatibility

Compatible with drilling aluminum, brass, carbon steel, cast iron, nickel alloy, plastic, stainless steel, and tool steel. Fits any standard drill chuck accepting a straight shank of 11/64 inch (0.1719 inches) diameter.

Installation Notes

This bit is installed in a standard keyed or keyless drill chuck by machinists, pipefitters, or maintenance technicians. Secure the shank fully before operation and verify chuck runout is within acceptable limits to avoid premature wear. Use appropriate cutting fluid or coolant when drilling ferrous metals or stainless steel to prolong edge life. Always wear appropriate eye protection and follow shop safety protocols when operating rotary cutting tools.