Precision Twist Drill 5996940 9mm Hss Jobber Drill Bit

Product Description

The PRECISION TWIST DRILL 5996940 is a 9 mm jobber-length drill bit engineered 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 and a parabolic spiral flute that promotes efficient chip evacuation and reduces walking on entry. The straight cylindrical shank measures 9 mm in diameter and seats securely in standard drill chucks. With an overall length of 4-59/64 inches and a flute length of 3-3/16 inches, it delivers the reach and chip clearance needed for production and maintenance drilling tasks. The web-thinned, tapered web configuration reduces thrust requirements when drilling through harder workpieces.

This bit is suited for drilling steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium. It is a heavy-duty general-purpose tool appropriate for use in machine shops, fabrication environments, and field maintenance settings. The QC21PM series is built to DIN 338 standards, making it compatible with metric tooling setups common in both domestic and international manufacturing operations. Machinists, millwrights, pipefitters, and maintenance technicians will find it fits standard keyed and keyless chucks on drill presses, lathes, and handheld power drills.

Key Features

• 9 mm diameter with 135-degree split point for accurate, low-thrust entry
• Parabolic spiral flute design promotes fast chip removal and reduces heat buildup
• High speed steel construction handles steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium
• Web-thinned tapered web lowers required feed force on harder materials
• Right-hand cut with straight cylindrical shank for universal chuck compatibility
• Meets DIN 338 standard; Series QC21PM heavy-duty grade

Compatibility

Designed as an OEM-style jobber-length drill bit suitable for standard 9 mm or equivalent keyed and keyless drill chucks on drill presses, CNC machining centers, and handheld power drills. Compatible workpiece materials include steel, stainless steel, cast iron, non-ferrous metals, superalloys, and titanium per DIN 338 specifications.

Installation Notes

Install in a properly sized drill chuck and tighten securely before operation. Power down and de-energize the machine before changing bits. Use appropriate cutting fluid or coolant for the workpiece material, especially when drilling stainless steel or superalloys, to extend tool life. Inspect the cutting edges before each use and replace the bit if chipping or excessive wear is observed.