Guhring 9005490049800 Jobber Drill Bit No 9 Hss

Product Description

The GUHRING 9005490049800 is a jobber length drill bit designed for precision drilling in metalworking and light industrial applications. Built from high speed steel (HSS) with a bright uncoated finish, this Series 549 bit features a 130-degree split point and a parabolic flute geometry that improves chip evacuation and reduces heat buildup during cutting. The wire gauge No. 9 size corresponds to a decimal diameter of 0.1961 inches. Overall length is 3-3/8 inches with a flute length of 2-1/16 inches. The straight cylindrical shank fits standard drill chucks. This bit is manufactured to DIN 338 standards and is rated as a high performance grade tool suited for demanding production environments.

This drill bit is primarily intended for drilling aluminum and other non-ferrous and ferrous materials where clean hole entry and efficient chip removal are required. The parabolic flute design with a 5xD flute-to-diameter ratio supports deeper hole drilling with reduced pecking cycles. The web-thinned, tapered web configuration lowers thrust force at the point, which is especially useful when working in softer materials such as aluminum. Typical users include machinists, tool and die technicians, and maintenance professionals working with drill presses, CNC machines, or handheld power drills in shop and field settings.

Key Features

• Wire size No. 9 with a decimal diameter of 0.1961 inches, conforming to DIN 338 standards
• 130-degree point angle with web thinning for reduced entry thrust and improved centering
• Parabolic flute design with 5xD ratio for efficient chip evacuation in deep-hole drilling
• High speed steel construction with bright uncoated finish for general-purpose metal drilling
• Straight cylindrical shank at 0.1961 inches diameter for compatibility with standard chucks
• Maximum drilling depth of 1.753 inches (44.53 mm) with 2-flute cutting geometry

Compatibility

Designed as a DIN 338 jobber length replacement or direct-use drill bit suitable for standard 3-jaw drill chucks and collet systems accepting a 0.1961-inch straight cylindrical shank. Primary workpiece material codes K, N, and P indicate suitability for aluminum, non-ferrous metals, and general steel applications.

Installation Notes

Secure the shank fully in the drill chuck and verify concentricity before operation to prevent deflection and oversized holes. Use appropriate cutting fluid or lubricant when drilling ferrous materials to extend tool life and maintain hole tolerance. Follow OSHA machine guarding standards and wear appropriate eye protection when operating drill presses or handheld drills. Inspect the cutting edges for chipping or wear before each use and replace the bit if the point geometry is compromised.