Cleveland C71217 Jobber Drill Bit 1.85 Mm Hss

Product Description

The CLEVELAND C71217 is a jobber-length twist drill bit designed for general-purpose drilling in metal, wood, and plastic. Built from high speed steel with an oxide coating, it offers adequate hardness and surface protection for everyday production and maintenance drilling tasks. The bit measures 1.85 mm (0.0728 inches) in diameter with an overall length of 1.811 inches and a flute length of 0.866 inches. A 118-degree standard point angle and web-thinned tip reduce entry force and improve centering on flat and curved surfaces. Licensed machinists, maintenance technicians, and trade professionals install this bit in standard drill presses, hand drills, and CNC equipment.

This drill bit is suited for light-duty to medium-duty applications requiring a small-diameter hole in ferrous and non-ferrous materials. Its 1.85 mm cutting diameter makes it a common choice for pilot holes, tap drill operations, and instrument-scale work. The straight-cylindrical shank fits standard keyless and keyed chucks. The regular spiral flute geometry supports efficient chip evacuation in shallow and moderate-depth holes. Right-hand cutting direction is standard for conventional clockwise drill operation.

Key Features

• 1.85 mm (0.0728 inch) cutting diameter with a -0.0005 to 0.0000 inch diameter tolerance for controlled fit
• 118-degree standard point angle with web-thinned, tapered web for reduced thrust and improved self-centering
• High speed steel construction with oxide finish for corrosion resistance and reduced friction
• Regular spiral flute with 2 flutes and a 4xD flute-to-diameter ratio for reliable chip removal
• Straight-cylindrical shank (0.0728 inch shank diameter) compatible with standard drill chucks
• Meets ASME B94.11M and DIN 338 standards for consistent dimensional accuracy

Compatibility

Designed as a general-purpose jobber-length drill bit suitable for use in standard hand drills, drill presses, and CNC drilling equipment that accept straight-cylindrical shanks in this diameter range.

Installation Notes

Install and remove drill bits only when the drill or machine is fully powered down and the chuck is stationary. Secure the shank fully in the chuck to the recommended grip depth before tightening. Use appropriate cutting fluid or lubricant when drilling ferrous materials to extend bit life and improve hole quality. Inspect the cutting edges for wear or chipping before each use, as small-diameter bits are susceptible to breakage under lateral loading.