Import 27551 Jobber Drill Bit Wire 51 118 Deg Hss

Product Description

The IMPORT 27551 is a wire gauge size 51 jobber-length drill bit designed for general-purpose drilling in metal, plastic, and similar materials. It is made from high speed steel (HSS) with an oxide coating that provides basic lubricity and corrosion resistance during use. The bit features a 118-degree standard point angle, a right-hand spiral flute, and a straight-cylindrical shank measuring 0.0670 inches in diameter. Overall length is 2 inches with a 1-inch flute length. The tapered web construction with web thinning reduces thrust during entry, making it suitable for precision drilling tasks in light manufacturing, HVAC, electrical, and plumbing service applications.

This drill bit is suited for trade professionals who need small-diameter hole drilling in sheet metal, brackets, enclosures, and conduit fittings. The wire size 51 designation corresponds to a decimal diameter of 0.0670 inches, placing it in the 0.0500 to 0.1000 inch size range. It is a common choice for pilot holes, clearance holes, and tap-prep work in light-gauge ferrous and non-ferrous materials. The regular spiral flute promotes efficient chip evacuation in short-run drilling operations.

Key Features

• Wire gauge size 51, decimal diameter 0.0670 inches for precise small-hole drilling
• 118-degree standard point angle suitable for general-purpose metal drilling
• High speed steel construction with oxide coating for basic wear and corrosion resistance
• Right-hand spiral flute with regular helix for consistent chip removal
• Tapered web with web thinning reduces entry thrust and improves hole accuracy
• Straight-cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill bit for use in standard drill chucks accepting a 0.0670-inch straight shank across a wide range of hand drills, drill presses, and machine tools.

Installation Notes

This bit is installed by licensed tradespeople and skilled technicians using standard keyed or keyless drill chucks. Secure the shank fully in the chuck before operation and verify concentricity to avoid bit deflection at this small diameter. Secure workpieces firmly before drilling to prevent movement that can snap a small-diameter bit. Always wear appropriate eye protection when drilling metal.