Cleveland C71251 Jobber Length Drill Bit 4.6 Mm Hss

Product Description

The CLEVELAND C71251 is a jobber-length twist drill bit designed for general-purpose drilling in a wide range of materials. Built from high speed steel with an oxide coating, it delivers reliable performance in production and maintenance drilling applications. The bit measures 4.6 mm (0.1811 inches) in diameter with an overall length of 3.15 inches and a flute length of 1.85 inches. A 118-degree standard point angle and web-thinned tip reduce entry force and improve centering on flat and curved surfaces. The straight-cylindrical shank seats securely in standard keyless or keyed drill chucks. Licensed machinists, maintenance technicians, and trade professionals working in metal fabrication or mechanical assembly are the primary users of this tool.

This bit is suited for general-purpose drilling in mild steel, aluminum, cast iron, plastics, and similar materials encountered in HVAC, plumbing, electrical, and general mechanical service work. The 2-flute spiral configuration with regular spiral type provides efficient chip evacuation in through-hole and blind-hole drilling. With a flute-to-diameter ratio of 4xD, the C71251 handles moderate-depth holes typical in field service and shop environments. It conforms to ASME B94.11M and DIN 338 standards, making it a consistent drop-in for shops sourcing to those specifications.

Key Features

• High speed steel construction with oxide coating for wear resistance and corrosion protection
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust and improved starts
• 2-flute regular spiral design promotes chip evacuation in metal and plastic drilling
• Straight-cylindrical shank (0.1811 inches diameter) fits standard drill chucks without adapters
• Meets ASME B94.11M and DIN 338 standards for consistent dimensional tolerances
• General-purpose grade rated for use across mild steel, aluminum, plastics, and similar materials

Compatibility

Designed as a general-purpose jobber-length drill bit conforming to DIN 338 and ASME B94.11M, suitable for use in any standard drill chuck accepting a 0.1811-inch straight-cylindrical shank.

Installation Notes

Install the bit in a keyed or keyless drill chuck and tighten fully before operation. Secure the workpiece before drilling to prevent movement and ensure clean hole entry. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and reduce heat buildup. Inspect the cutting edges for wear or chipping before each use and replace if the point shows visible damage.