Precision Twist Drill 5999095 No. 22 Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5999095 is a wire gauge No. 22 jobber length drill bit designed for general-purpose drilling in metal and hard materials. The bit measures 0.157 inches in diameter with an overall length of 3.125 inches and a spiral flute length of 2 inches. It is manufactured from high speed steel (HSS) and finished with a steam oxide coating to reduce friction and improve chip evacuation. The 135-degree split point reduces walking on entry without requiring a center punch. A right-hand cut, two-flute spiral geometry suits production and maintenance drilling operations performed by machinists, pipefitters, and HVAC service techs.

This bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium in both shop and field environments. The straight-cylindrical shank fits standard three-jaw chucks on hand drills, drill presses, and CNC machines. The Series R18B designation places this bit within the Precision Twist Drill R10B-R15B-R18B family, which is built to ANSI and NAS 907 standards for consistent dimensional tolerancing across production runs.

Key Features

• Wire gauge No. 22 diameter: 0.157 inches for precision hole sizing
• 135-degree standard split point reduces bit walking on hard surfaces
• High speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Steam oxide finish lowers friction and extends tool life in repeated-hole applications
• Web-thinned, tapered web design improves chip clearance and reduces thrust force
• Right-hand, two-flute regular spiral at 13xD flute-to-diameter ratio for balanced cutting performance

Compatibility

Designed as an OEM-style replacement and standard jobber length drill bit compatible with any three-jaw chuck accepting a 0.157-inch straight-cylindrical shank. Manufactured to ANSI and NAS 907 specifications for use across Series R10B, R15B, and R18B applications.

Installation Notes

Install in a properly rated drill press, hand drill, or CNC spindle with the chuck tightened securely before operation. Ensure the workpiece is clamped or fixtured to prevent movement during drilling. Use appropriate cutting fluid or coolant for stainless steel, titanium, and superalloy workpieces to manage heat buildup, as this bit does not support through-coolant delivery. Dispose of worn bits per applicable shop safety procedures.