Cleveland C71040 5/8 Inch Hss Jobber Length Drill Bit

Product Description

The CLEVELAND C71040 is a jobber-length drill bit designed for general-purpose drilling in metal, wood, and similar materials. It measures 5/8 inch (0.6250 inch) in diameter with a 118-degree standard point angle and a right-hand spiral flute configuration. The bit is manufactured from high speed steel with an oxide coating that provides corrosion resistance and mild lubricity during cutting. Overall length is 7-1/8 inches with a flute length of 5-3/16 inches. This is a straight-cylindrical shank bit intended for use in standard drill chucks. Machinists, maintenance technicians, pipefitters, and HVAC fabricators commonly reach for this size in everyday shop and field work.

The C71040 is suited for production and maintenance drilling where a general-purpose HSS bit is appropriate. The web-thinned, tapered web design reduces thrust force at the cutting tip, making it easier to start holes cleanly. With a 4xD flute-to-diameter ratio and regular spiral, this bit handles through-hole and blind-hole applications in mild steel, aluminum, plastics, and similar substrates. It is sold individually and is appropriate wherever a 5/8-inch jobber-length bit is specified.

Key Features

• 5/8 inch diameter (0.6250 inch decimal) with a diameter tolerance of -0.0012 to 0.0000 inches for consistent hole sizing
• 118-degree standard point angle for general-purpose drilling across a wide range of materials
• High speed steel construction with oxide coating for corrosion resistance and reduced friction
• Web-thinned, tapered web reduces required thrust and improves penetration efficiency
• Right-hand cut, regular spiral with 2 flutes for efficient chip evacuation
• Straight-cylindrical shank at 5/8 inch diameter fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber-length drill bit conforming to ASME B94.11M and DIN 338 standards, suitable for use in any standard drill chuck accepting a 5/8-inch straight-cylindrical shank.

Installation Notes

Secure the shank fully in a properly sized drill chuck before operation and verify chuck key is removed before starting the spindle. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and improve hole finish. Machinists and maintenance technicians should match spindle speed (RPM) to the workpiece material and bit diameter per standard machining reference tables. Inspect the cutting edges and web area for wear or chipping before each use and replace if edge integrity is compromised.