Guhring 9055230095200 Cobalt Drill Bit 3/8 Inch Din 338

Product Description

The GUHRING 9055230095200 is a cobalt (M35 grade) jobber length drill bit designed for general-purpose drilling in metal fabrication, machining, and maintenance applications. Built to DIN 338 standards, it measures 3/8 inch (0.3750 inch) in diameter with an overall length of 133 mm and a flute length of 87 mm. The four-facet split point at 118 degrees reduces thrust and improves centering without a pilot hole. The straight-cylindrical shank fits standard three-jaw chucks and most drill presses and hand drills. Licensed machinists, pipefitters, ironworkers, and industrial maintenance technicians are the primary installers.

This bit is suited for drilling aluminum, mild steel, stainless, and other ferrous and non-ferrous materials, as indicated by its K, M, N, and P workpiece material codes. The regular spiral flute type and 5xD flute-to-diameter ratio make it a reliable choice for through-hole drilling in both production and field service environments. At a maximum drilling depth of 2.863 inches (72.72 mm) and a shank length of 46 mm, it handles standard jobber-depth applications without extension. Series 5523 is a production-grade line intended for repetitive use in shop and field settings.

Key Features

• M35 cobalt steel construction for improved heat and wear resistance over standard HSS
• Four-facet split point geometry at 118 degrees reduces walking and entry thrust
• Web-thinned, tapered web design improves chip evacuation and reduces cutting resistance
• Right-hand cut, regular spiral flute with 5xD ratio for consistent chip flow
• Straight-cylindrical shank (3/8 inch) for compatibility with standard chucks
• Bright uncoated finish; DIN 338 specification for dimensional accuracy

Compatibility

Designed as a DIN 338-compliant jobber length drill bit suitable for use in standard three-jaw drill chucks accepting a 3/8 inch straight shank. Rated for primary workpiece materials classified under K, M, N, and P codes, including aluminum, cast iron, steel, and non-ferrous metals.

Installation Notes

A licensed machinist or qualified maintenance technician should verify chuck capacity and spindle speed before use. Secure the workpiece and confirm proper chuck engagement before starting the drill. Follow applicable shop safety codes and wear appropriate eye protection. Do not force the bit through hardened materials beyond its rated material grade.