Cleveland C16899 Taper Length Drill Bit 9/32 in Cobalt

Product Description

The CLEVELAND C16899 is a taper length drill bit from the 2575T Series, designed for heavy-duty drilling in a wide range of materials. Built from M42 cobalt steel and finished with a titanium nitride coating, this bit delivers extended tool life and heat resistance under demanding cutting conditions. The 9/32 inch (0.2812 inch decimal) diameter bit features a 135-degree split point for self-centering starts and reduced thrust, and a parabolic flute geometry that promotes efficient chip evacuation. Right-hand cut with a straight shank, it fits standard drill chucks and is sized for use by machinists, maintenance technicians, and fabricators working in production or field environments.

The C16899 is suited for drilling aluminum, brass, carbon steel, cast iron, nickel alloy, plastic, stainless steel, and tool steel. Its taper length profile provides added reach compared to jobber-length bits, making it useful in applications where standard-length bits cannot access the workpiece. The parabolic flute design reduces chip packing in deep-hole drilling scenarios, and the web-thinned, tapered web configuration keeps cutting forces manageable across a range of material hardnesses.

Key Features

• M42 cobalt steel construction rated for heavy-duty cutting in stainless steel, nickel alloy, and tool steel
• Titanium nitride coating extends tool life and reduces friction at the cutting edge
• 135-degree split point enables self-centering entry and reduces walking on hard surfaces
• Parabolic flute with web thinning promotes chip evacuation in deep holes
• Taper length OAL of 6-1/4 inches provides additional reach over standard jobber bits
• Meets ASME B94.11M and DIN 340 standards; referenced to DIN 338 specification

Compatibility

Designed as a direct-fit taper length drill bit for use in standard straight-shank drill chucks accepting a 0.2812 inch shank diameter. Compatible with benchtop drill presses, CNC drilling centers, and handheld power drills configured for straight-shank tooling.

Installation Notes

Secure the straight shank firmly in a drill chuck or collet before use and verify runout is within acceptable limits to prevent premature wear. Always match spindle speed and feed rate to the workpiece material per established machining data for cobalt-grade tooling. Use cutting fluid or coolant where possible when drilling stainless steel, cast iron, or nickel alloy to manage heat buildup at the cutting edge. Inspect the split point and flute edges for chipping or wear before each use and replace the bit if damage is observed.