Precision Twist Drill 5996655 Jobber Drill 3mm Hss

Product Description

The PRECISION TWIST DRILL 5996655 is a 3.00 mm high speed steel jobber drill bit designed for general-purpose drilling in metal fabrication, maintenance, and light manufacturing environments. The 135-degree split point geometry reduces walking on entry and requires less thrust than a standard 118-degree point. The bright, uncoated finish suits applications where coating cost is unnecessary and coolant or cutting fluid is applied externally. With an overall length of 2.4063 inches and a flute length of 1.2969 inches, this bit fits standard keyless and keyed drill chucks in benchtop drill presses, hand drills, and CNC drilling stations.

This jobber drill is rated for drilling steel, aluminum, and non-ferrous metals, covering ISO material groups P, M, K, N, and S. It follows DIN 338 geometry with a flute-to-diameter ratio of 11xD, making it well-suited for through-hole drilling in sheet metal, structural steel, and aluminum extrusions. The straight cylindrical shank and standard spiral flute design make it a direct fit for production drilling environments where fast tool changes and consistent hole quality are required. Intended for use by machinists, tool-and-die technicians, and maintenance trades.

Key Features

• 135-degree split point reduces drill walk and lowers entry thrust
• High speed steel construction handles steel, aluminum, and non-ferrous workpieces
• Bright, uncoated finish — compatible with external coolant and cutting fluids
• Web-thinned, tapered web configuration improves chip evacuation
• DIN 338 standard geometry ensures dimensional consistency and interchangeability
• Straight cylindrical shank fits standard drill chucks without adapters

Compatibility

Designed as a general-purpose jobber drill for use in standard 3.00 mm chuck capacity drill presses, hand drills, and CNC drilling equipment. Suitable for primary workpiece materials classified under ISO codes P, M, K, N, and S, including carbon steel, alloy steel, aluminum, and non-ferrous metals.

Installation Notes

Machinists and maintenance technicians should secure the shank fully in the chuck and verify runout before drilling. Always de-energize or lock out the drill press or power tool before installing or removing the bit. Apply appropriate cutting fluid or coolant for the workpiece material to extend tool life. Follow shop safety protocols and OSHA machine guarding requirements when operating drilling equipment.