Cleveland C71129 Jobber Drill Bit Wire 29 0.136 in Hss

Product Description

The CLEVELAND C71129 is a jobber-length drill bit designed for general-purpose metal drilling in production and maintenance applications. Built from high speed steel with an oxide coating, this bit handles ferrous and non-ferrous materials across a wide range of shop and field conditions. It carries a wire gauge size of 29, which corresponds to a decimal diameter of 0.1360 inches. The 118-degree standard point angle delivers a self-centering entry without requiring a pilot hole in most applications. Overall length is 2-7/8 inches with a 1-3/4 inch flute length, making it suited for moderate-depth holes in sheet metal, structural steel, and general fabrication work.

This bit is a fit for general-purpose drilling in fabrication shops, HVAC, plumbing rough-in, and electrical trade work where small-diameter holes are required in metal. The straight-cylindrical shank seats directly in standard drill chucks without adapters. The 2-flute spiral design clears chips efficiently in through-hole and blind-hole drilling. Series 2001G bits are intended for hand-held drills, drill presses, and production CNC applications where a jobber-length reach is appropriate.

Key Features

• Wire size 29 (0.1360 inches decimal) for consistent fit in go/no-go gauge applications
• 118-degree standard split point with web-thinned, tapered web for reduced thrust
• High speed steel construction with oxide finish for moderate heat and wear resistance
• 2-flute regular spiral geometry with 4xD flute-to-diameter ratio for reliable chip evacuation
• Straight-cylindrical shank (0.1360 inches diameter) fits standard keyed and keyless chucks
• Meets ASME B94.11M and DIN 338 standards for jobber-length drill bits

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with standard 3-jaw drill chucks on hand drills, drill presses, and CNC drilling equipment accepting straight-cylindrical shanks in the 0.1360-inch diameter range.

Installation Notes

Install in a properly tightened drill chuck before energizing any drilling equipment. Ensure the workpiece is secured with a clamp or vise before drilling to prevent rotation. Use appropriate cutting fluid or lubricant when drilling hardened steel to extend bit life and reduce heat buildup. Inspect for chipping or dullness before each use and replace if the cutting edges are compromised.