Precision Twist Drill 5996588 Jobber Drill Bit 11.5mm

Product Description

The PRECISION TWIST DRILL 5996588 is a jobber-length drill bit designed for general-purpose drilling in metal fabrication, maintenance, and production environments. Built from high speed steel with a bright uncoated finish, it measures 11.5 mm (29/64 inch) in diameter with an overall length of 5-19/32 inches (142 mm). The 135-degree split point reduces walking on entry and lowers thrust requirements compared to a standard 118-degree point. The parabolic spiral flute with web thinning improves chip evacuation and keeps the cut clean in deeper holes. This bit is installed and used by machinists, maintenance technicians, and metalworking tradespeople who need a reliable general-purpose drill for production or field work.

The 5996588 is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. Its QC21PM series design conforms to DIN 338, making it a recognized standard for jobber-length tooling. The straight-cylindrical shank fits standard three-jaw drill chucks on benchtop drill presses, magnetic drills, and handheld power drills. With a flute-to-diameter ratio of 8xD and a flute length of 3-45/64 inches (94 mm), it handles moderate drilling depths without excessive chip packing in the flutes.

Key Features

• 11.5 mm (29/64 inch) diameter, jobber length at 5-19/32 inches overall
• 135-degree point angle with web thinning for low-thrust, accurate starts
• High speed steel construction rated for steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Parabolic spiral flute geometry promotes efficient chip removal in through-hole and blind-hole applications
• Straight-cylindrical shank fits standard drill chucks without adapters
• Conforms to DIN 338 specification for jobber-length drills

Compatibility

Designed as an OEM-style jobber-length drill bit conforming to DIN 338 standards, compatible with any standard three-jaw drill chuck accepting a 11.5 mm straight-cylindrical shank.

Installation Notes

This drill bit is installed by machinists and metalworking technicians using standard drill chucks on drill presses, handheld drills, or magnetic base drills. Secure the shank fully in the chuck before operating to prevent runout. Always use appropriate cutting fluid or coolant when drilling stainless steel, superalloys, or titanium to extend tool life and prevent work hardening. Wear appropriate PPE including eye protection whenever drilling operations are performed.