Guhring 9005490032200 Jobber Drill Bit 3.22mm Hss

Product Description

The GUHRING 9005490032200 is a jobber length twist drill bit designed for precision hole-making in a range of workpiece materials. Built from high speed steel with a bright, uncoated finish, it measures 3.22 mm (0.1268 inches) in diameter and carries an overall length of 65 mm (approximately 2-9/16 inches). The 130-degree split point and parabolic flute geometry promote efficient chip evacuation and reduce walking on entry. Web thinning further lowers thrust requirements and supports cleaner hole entry. This bit is suited for use in drill presses, CNC machining centers, and hand-held power tools operated by machinists, tool-and-die workers, and maintenance technicians.

The 9005490032200 is primarily rated for aluminum and non-ferrous materials, with workpiece material codes covering K, N, and P classifications per standard tooling nomenclature. The parabolic flute design with a 5xD flute-to-diameter ratio handles chip loads well in softer and gummy metals. With a maximum drilling depth of 31.17 mm (1.227 inches) and a straight-cylindrical shank diameter of 0.1268 inches, it fits standard drill chucks without modification. Series 549 bits conform to DIN 338, making them a recognized standard in general-purpose jobber length drilling applications.

Key Features

• 3.22 mm diameter with 130-degree point angle for accurate entry and reduced thrust
• Parabolic flute geometry with 5xD ratio supports efficient chip removal in aluminum and non-ferrous materials
• Web-thinned tapered web configuration reduces cutting resistance at the drill tip
• Bright, uncoated high speed steel construction — no coating buildup in gummy or soft metals
• Straight-cylindrical shank fits standard drill chucks without adapters
• Conforms to DIN 338 standard for jobber length drill geometry

Compatibility

Designed as an OEM-style jobber length drill bit conforming to DIN 338, suitable for standard drill chucks accepting a 0.1268-inch straight shank. Recommended for aluminum, non-ferrous metals, and plastic workpiece materials (material codes K, N, P).

Installation Notes

Secure the shank fully in the drill chuck and verify concentricity before drilling. A licensed machinist or qualified maintenance tech should set appropriate spindle speed for the workpiece material and bit diameter. Ensure the workpiece is firmly clamped before operation. Do not force-feed the bit beyond its rated maximum drilling depth of 1.227 inches.