Precision Twist Drill 5996995 Jobber Drill Bit 27 Hss

Product Description

The PRECISION TWIST DRILL 5996995 is a jobber-length drill bit sized to wire gauge 27 (0.1440 inches decimal equivalent), designed for general-purpose drilling in metal and hard materials. Built from high speed steel with a bright uncoated finish, it features a 135-degree split point for reduced thrust and faster penetration without a center punch. The right-hand, spiral-flute geometry with web thinning helps clear chips efficiently in deeper holes. With a 3-inch overall length and a 1-7/8-inch flute length, this bit is a standard reach tool used daily by machinists, maintenance technicians, and fabricators working at the drill press or with handheld power tools.

This drill bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It fits the Series QC21P product line, which is aimed at heavy-duty general-purpose applications in production and job-shop environments. The straight cylindrical shank accepts standard drill chucks across a wide range of machines. A maximum drilling depth of 1-7/8 inches makes it appropriate for through-holes and moderate blind-hole work in stock of typical thickness.

Key Features

• Wire gauge 27 size, 0.1440 inch decimal equivalent — matches standard wire gauge charts
• 135-degree point angle with web thinning reduces entry force and improves self-centering
• High speed steel construction handles steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Bright uncoated finish suitable for use with cutting fluid on ferrous and non-ferrous workpieces
• Parabolic-style spiral flute promotes chip evacuation in deeper drilling operations
• Straight cylindrical shank with zero flats fits standard 3-jaw drill chucks without adapters

Compatibility

Designed as a general-purpose jobber-length drill bit compatible with any standard drill chuck that accepts a 0.1440-inch straight cylindrical shank, including benchtop drill presses, CNC machining centers, and handheld power drills. Conforms to ANSI standards per Series QC21P specifications.

Installation Notes

Installation is performed by machinists, toolroom technicians, or maintenance professionals setting up drilling operations. Secure the shank fully in the chuck before tightening to prevent runout. Always power down and de-energize the machine spindle before changing bits. Use an appropriate cutting fluid for ferrous and hard-material workpieces to extend tool life and improve hole finish quality.