Precision Twist Drill 5999419 Jobber Drill Bit No. 41

Product Description

The PRECISION TWIST DRILL 5999419 is a jobber-length twist drill bit sized at wire gauge No. 41 (0.0960 inches decimal equivalent) with a 118-degree standard point angle. Manufactured from high speed steel with a steam oxide coating, the bit delivers consistent performance in general-purpose drilling applications. The spiral flute design with a tapered web and web-thinned point reduces thrust and improves chip evacuation. Overall length is 2.375 inches, and maximum drilling depth reaches 1.375 inches. Licensed electricians, machinists, pipefitters, and general tradespeople rely on this size for pilot holes, clearance holes, and precision drilling tasks.

This bit is suited for drilling into steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. The steam oxide coating helps reduce friction and provides modest corrosion resistance during use. Its straight cylindrical shank fits standard three-jaw drill chucks found on benchtop drill presses and handheld power drills. The 14xD flute-to-diameter ratio makes it appropriate for applications requiring moderate depth in a compact overall length. It is part of the R18A series and meets ANSI and NAS 907 specifications, making it a reliable choice for production and maintenance environments.

Key Features

• Wire gauge No. 41 size — 0.0960 inch decimal equivalent for precision hole sizing
• 118-degree standard point angle with web-thinned tip reduces entry thrust
• High speed steel construction withstands heat generated in general-purpose drilling
• Steam oxide coating reduces friction and provides light corrosion resistance
• 2-flute spiral design with tapered web promotes efficient chip removal
• Meets ANSI and NAS 907 specifications for dimensional consistency

Compatibility

Designed for use in standard straight-shank drill chucks on benchtop drill presses, handheld power drills, and drill press machines used in metalworking, maintenance, and fabrication applications. Compatible with workpiece materials including steel, stainless steel, cast iron, non-ferrous metal, superalloys, and titanium per manufacturer material codes P, M, K, N, and S.

Installation Notes

Installation is performed by machinists, maintenance technicians, and trade professionals using a standard three-jaw chuck. Secure the straight cylindrical shank fully in the chuck before operation and verify concentricity to prevent bit walking. Always wear appropriate eye protection and use cutting fluid when drilling into hard metals such as stainless steel or titanium to extend bit life. Inspect the cutting edges for wear before each use and replace the bit if chipping or dulling is observed.