Precision Twist Drill 5996966 No. 15 Hss Jobber Drill

Product Description

The PRECISION TWIST DRILL 5996966 is a high-speed steel (HSS) jobber-length drill bit in wire gauge size No. 15, equivalent to 0.1800 inches in decimal. It features a 135-degree split point with web thinning, which reduces walking on entry and lowers the thrust force needed to start a hole. The bright, uncoated finish is standard for general-purpose HSS tooling and suits a wide range of drilling applications. Overall length is 3.375 inches with a flute length of 2.1875 inches, providing a 12xD flute-to-diameter ratio. The straight cylindrical shank diameter is 0.1800 inches, compatible with standard drill chucks.

This bit is suited for production and maintenance drilling in steel, aluminum, and other non-ferrous metals in both shop and field environments. The QC21P series is a general-purpose line built to ANSI standards, making it a reliable choice for machinists, pipefitters, electricians, and HVAC technicians who need a consistent, repeatable hole at a common wire gauge size. The two-flute regular spiral geometry handles chip evacuation efficiently in most ductile materials.

Key Features

• Wire gauge No. 15 sizing, 0.1800 inch decimal diameter
• 135-degree split point with web thinning for fast, accurate starts
• High-speed steel construction, bright/uncoated finish for general-purpose use
• Regular spiral, two-flute design for efficient chip removal
• Tapered web configuration and straight cylindrical shank
• Built to ANSI standards, QC21P series

Compatibility

Designed as a general-purpose jobber drill bit compatible with any standard keyed or keyless drill chuck accepting a 0.1800-inch straight cylindrical shank. Primary workpiece materials include steel, aluminum, and non-ferrous metals.

Installation Notes

This bit is installed by machinists and trade professionals using any drill press, hand drill, or CNC machine fitted with a compatible chuck. Secure the shank fully in the chuck before operation and verify chuck key removal before starting the spindle. Do not exceed the recommended drilling depth of 2.1875 inches without withdrawing to clear chips. Use appropriate cutting fluid when drilling ferrous materials to extend tool life.