Cleveland C71248 Jobber Length Drill Bit 4.3 Mm Hss

Product Description

The CLEVELAND C71248 is a jobber-length twist drill bit designed for general-purpose hole-making in metal, wood, and plastic. Built from high speed steel (HSS) with an oxide coating, it measures 4.3 mm (0.1692 inches) in diameter and 3.15 inches overall length. The 118-degree standard point angle and web-thinned tip reduce entry force and help center the bit without a pilot hole. With two spiral flutes and a right-hand cut, it clears chips efficiently during through-hole drilling. This bit suits maintenance, fabrication, and light production work performed by machinists, pipefitters, electricians, and general trade professionals.

The C71248 is a Series 2001G jobber drill conforming to ASME B94.11M and DIN 338 standards. Its straight-cylindrical shank fits standard 3-jaw drill chucks on handheld drills, drill presses, and CNC turret machines. The 1.85-inch flute length handles typical stock thicknesses encountered in field service and shop environments. It is suited for drilling ferrous and non-ferrous materials at general-purpose cutting speeds. The 4xD flute-to-diameter ratio and regular spiral type make it a reliable choice for everyday hole-making across residential and light commercial trade applications.

Key Features

• High speed steel construction with oxide coating for corrosion resistance and reduced friction
• 118-degree standard point angle with web-thinned tip for easy starting and reduced thrust
• Two spiral flutes, right-hand cut, regular spiral type for efficient chip evacuation
• Straight-cylindrical shank (0.1692 inches diameter) fits standard drill chucks
• Conforms to ASME B94.11M and DIN 338 specifications for consistent dimensional accuracy
• Diameter tolerance of -0.0007 to 0.0000 inches ensures precise hole sizing

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard 3-jaw chuck accepting a straight-cylindrical shank. Fits handheld electric drills, benchtop drill presses, and turret-style CNC drilling machines used in trade and light manufacturing applications.

Installation Notes

Secure the straight-cylindrical shank firmly in the chuck before use and verify concentricity to avoid walking or oversizing the hole. Use appropriate cutting fluid or lubricant when drilling ferrous metals to extend bit life and maintain dimensional tolerance. Allow the bit to cool between deep cuts to prevent premature dulling of the HSS cutting edges. Follow shop safety practices including securing the workpiece and wearing appropriate eye protection.