Precision Twist Drill 5996342 Letter G Hss Jobber Drill

Product Description

The PRECISION TWIST DRILL 5996342 is a Letter G jobber-length drill bit designed for general-purpose drilling in demanding materials. The bit measures 0.2610 inches in diameter and 4.125 inches overall, with a 135-degree split-point geometry and a web-thinned, tapered web construction that reduces walking and lowers thrust on entry. The bronze coating provides lubricity and heat resistance during drilling. Two spiral flutes evacuate chips efficiently across a 2.875-inch flute length. This bit is intended for use by machinists, maintenance technicians, and metalworking tradespeople who require consistent performance in production or field drilling applications.

The 5996342 is suited for drilling steel, stainless steel, cast iron, superalloys, and titanium in both shop and on-site environments. The straight cylindrical shank seats in standard drill chucks without modification. With a maximum drilling depth of 2.875 inches and a flute-to-diameter ratio of 11xD, the bit handles through-hole and blind-hole work in ferrous and difficult-to-machine alloys. The Series HX10-HX15-HX18 designation places this bit within a defined family of high-speed steel jobber drills built to ANSI standards.

Key Features

• Letter G diameter (0.2610 inches) for precise sizing in standard letter-drill applications
• 135-degree split-point with web thinning reduces thrust and improves self-centering on hard materials
• High speed steel construction with bronze coating for improved lubricity and heat resistance
• Right-hand cutting with regular spiral flutes for efficient chip evacuation
• Straight cylindrical shank fits standard three-jaw drill chucks without an adapter
• Built to ANSI specification for consistent dimensional accuracy

Compatibility

Rated for primary workpiece materials including steel, stainless steel, cast iron, superalloys, and titanium (material codes P, M, K, S). Part of the PRECISION TWIST DRILL Series HX10-HX15-HX18 jobber drill family.

Installation Notes

Install the shank fully into a compatible drill chuck and tighten securely before use. De-energize and lock out any power tool or machine before changing bits. Apply cutting fluid or coolant externally when drilling stainless steel, superalloys, or titanium to manage heat buildup, as this bit does not support coolant-through delivery. Verify chuck capacity accommodates a 0.2610-inch shank before mounting.