Cleveland C16761 Taper Length Drill Bit Wire 38 Cobalt

Product Description

The CLEVELAND C16761 is a taper length cobalt drill bit designed for heavy-duty drilling in demanding materials. Built to wire size 38 (0.1015 inches diameter), it features a 135-degree split point that reduces walking and cutting force on entry. The parabolic flute geometry promotes fast chip evacuation, which is critical when drilling deep holes in tough alloys. At 4.625 inches overall length with a 2.5-inch flute, this bit provides additional reach beyond a jobber-length drill. The M42 cobalt steel construction retains hardness under high heat, making it a practical choice for production or repetitive drilling operations.

This bit is suited for use in drill presses, CNC machining centers, and handheld power tools where a straight shank is appropriate. It is rated for drilling aluminum, brass, carbon steel, cast iron, nickel alloy, plastic, stainless steel, and tool steel. The taper length format gives machinists and maintenance technicians extra reach without sacrificing rigidity, making it well-suited for through-holes in medium-thickness workpieces. It cuts right-hand only. A single bit is packaged per unit, consistent with individual tooling procurement for job-specific needs.

Key Features

• Wire size 38 (0.1015 inches) with a shank diameter of 0.1015 inches and straight shank — no chuck adapter required
• 135-degree split point reduces thrust and eliminates center-punch requirement on most metals
• Parabolic flute with web thinning promotes efficient chip clearance in deep-hole applications
• M42 cobalt steel construction maintains cutting edge integrity in high-heat, abrasive materials including stainless steel and nickel alloy
• Tapered web configuration adds core strength along the flute length
• Meets ASME B94.11M and DIN 340 standards; referenced to DIN 338 specification

Compatibility

Rated for use in aluminum, brass, carbon steel, cast iron, nickel alloy, plastic, stainless steel, and tool steel. Straight shank fits standard drill chucks sized for 0.1015-inch diameter tooling.

Installation Notes

Installation and use should be performed by a qualified machinist or maintenance professional familiar with drill press or CNC tooling practices. Secure the straight shank fully in the chuck before operating and verify chuck jaw engagement across the full shank diameter. Use appropriate cutting fluid or coolant for the workpiece material to extend tool life, noting this bit does not support through-coolant delivery. Inspect the cutting edges before each use — M42 cobalt bits can be resharpened but should be replaced when the split point geometry is no longer intact.