Cleveland C71240 3.5mm Hss Jobber Length Drill Bit

Product Description

The CLEVELAND C71240 is a jobber-length twist drill bit designed for general-purpose drilling in metal, wood, and plastics. Built from high speed steel with an oxide finish, it offers adequate heat and wear resistance for production and maintenance drilling tasks. The bit measures 3.5 mm (0.1378 inches) in diameter with an overall length of 2.756 inches and a flute length of 1.535 inches. The 118-degree standard point angle suits a wide range of common workpiece materials. Licensed trade professionals and maintenance technicians reach for this bit when volume drilling demands a reliable, cost-effective HSS option.

The C71240 is suited for light industrial, mechanical, HVAC, and general trade applications where a metric-sized drill bit is required. Its straight-cylindrical shank fits standard three-jaw chucks on bench drills, hand drills, and drill presses. The 2-flute spiral configuration clears chips efficiently in through-hole and blind-hole drilling. This bit conforms to ASME B94.11M and DIN 338 standards, making it appropriate for shops that specify dimensionally standardized tooling.

Key Features

• 3.5 mm (0.1378 inches) diameter with diameter tolerance of -0.0007 to 0.0000 inches for consistent hole sizing
• High speed steel construction with oxide coating for improved surface hardness and lubricity
• 118-degree standard point angle for general-purpose drilling across common materials
• 2-flute regular spiral design promotes efficient chip evacuation
• Web-thinned, tapered web configuration reduces thrust force at entry
• Meets ASME B94.11M and DIN 338 standards; Series 2001G

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard three-jaw chuck accepting a 0.1378-inch straight-cylindrical shank.

Installation Notes

Install in a properly tightened chuck before powering the drill or drill press. Ensure the workpiece is securely clamped before beginning a cut. Use appropriate cutting fluid for metal drilling to extend bit life and maintain hole quality. Inspect the cutting edge for wear or chipping before each use and replace bits that show signs of dulling to prevent workpiece damage.