Cleveland C71243 Jobber Length Drill Bit 3.8 Mm Hss

Product Description

The CLEVELAND C71243 is a jobber-length drill bit designed for general-purpose metal drilling in professional trade and industrial applications. Manufactured from high speed steel with an oxide coating, it measures 3.8 mm (0.1496 inches) in diameter with an overall length of 2.953 inches. The 118-degree standard point angle and web-thinned, tapered web geometry reduce entry force and improve centering on flat and curved work surfaces. Two spiral flutes with a regular helix evacuate chips efficiently during drilling. This bit is suited for machinists, pipefitters, HVAC technicians, and electricians who need a reliable general-purpose bit for ferrous and non-ferrous materials.

The C71243 is a Series 2001G jobber-length bit conforming to ASME B94.11M and DIN 338 standards. It is appropriate for bench drill presses, hand drills, and drill-driver setups in residential, commercial, and light industrial settings. The straight-cylindrical shank fits standard keyless and keyed chucks. With a flute length of 1.6930 inches and a 4xD flute-to-diameter ratio, it handles typical through-hole and blind-hole drilling tasks across a broad range of common materials.

Key Features

• 3.8 mm (0.1496 inches) diameter with a diameter tolerance of -0.0007 to 0.0000 inches for consistent, accurate hole size
• 118-degree standard point angle with web-thinned tapered web for improved penetration and reduced walking
• High speed steel construction with oxide finish for corrosion resistance and extended service life in general-purpose applications
• Two regular-spiral flutes with 1.6930-inch flute length for efficient chip evacuation
• Straight-cylindrical shank (0.1496 inches diameter, 1.2599 inches long) compatible with standard chuck sizes
• Conforms to ASME B94.11M and DIN 338 specifications for dimensional consistency

Compatibility

Designed as a general-purpose jobber-length drill bit suitable for use with standard keyed and keyless drill chucks accepting straight-cylindrical shanks in the 3.00 mm to 4.00 mm diameter range.

Installation Notes

Install the bit securely in a properly sized chuck and verify the shank is fully seated before operation. Power down or unplug the drill before changing bits. Inspect the cutting edges and flutes for wear or chipping before each use; a damaged bit should be replaced rather than used. Follow applicable workplace safety standards and wear appropriate eye protection during all drilling operations.