Cleveland C16505 Cobalt Jobber Drill Bit Wire 3 135 Deg

Product Description

The CLEVELAND C16505 is a jobber-length drill bit in wire gauge size 3, measuring 0.2130 inches in diameter, designed for heavy-duty drilling in tough materials. Built from M42 cobalt high-speed steel and finished with a gold oxide coating, this bit delivers extended tool life in demanding production and maintenance environments. The 135-degree split point reduces walking and thrust at start, while the parabolic flute geometry improves chip evacuation and reduces heat buildup. At 3.75 inches overall length with a 2.5-inch flute length, it fits standard drill chucks and is a reliable choice for machinists, maintenance technicians, and metal fabricators working with hard or abrasive materials.

This bit is suited for drilling cast iron, stainless steel, carbon steel, and non-ferrous metals in both shop and field applications. The straight-cylindrical shank and jobber-length profile make it compatible with standard drill chucks on handheld drills, drill presses, and CNC drilling machines. The M42 cobalt grade makes it especially effective when working with work-hardening stainless alloys or cast iron where standard HSS bits dull quickly. Series 2075 is a heavy-duty designation intended for production-volume use.

Key Features

• M42 cobalt steel construction for heat and wear resistance in hard metals
• 135-degree split point reduces thrust and eliminates center-punch requirement on most metals
• Parabolic flute design accelerates chip removal and reduces clogging in deep holes
• Gold oxide finish provides lubricity and additional corrosion resistance
• Web-thinned, tapered web configuration reduces cutting torque at depth
• Meets ASME B94.11M and DIN 338 standards for jobber-length drill bits

Compatibility

Designed for use in standard straight-shank drill chucks on handheld drills, drill presses, and CNC machining centers. Primary workpiece materials include cast iron, stainless steel, carbon steel, and non-ferrous metals.

Installation Notes

Install and remove drill bits only when the drill or machine spindle is fully stopped and power is locked out. Use appropriate cutting fluid or coolant for stainless steel and cast iron to prolong bit life, even though this bit is not rated for coolant-through delivery. Secure workpieces firmly before drilling to prevent movement and bit breakage. Consult machine manufacturer specifications for recommended RPM ranges by bit diameter and workpiece material.