Guhring 9005490032300 Jobber Drill Bit 3.23mm Hss

Product Description

The GUHRING 9005490032300 is a jobber length drill bit engineered for precision drilling in aluminum and similar non-ferrous and ferrous materials. Manufactured from high speed steel with a bright uncoated finish, this Series 549 bit features a 130-degree standard point angle and a parabolic flute geometry that promotes efficient chip evacuation and reduced heat buildup during drilling operations. The straight-cylindrical shank measures 0.1272 inches in diameter, matching the bit diameter for straightforward chuck mounting. With an overall length of 2-9/16 inches and a flute length of approximately 1.417 inches, this is a compact, accurate general-purpose drill bit suited for professional machine shop and production drilling applications.

This bit is designed for use in CNC machining centers, drill presses, and hand-held power drills where consistent hole quality in aluminum, plastic, and light steel stock is required. The parabolic flute with web thinning reduces thrust and improves chip flow, making it well suited for drilling softer workpiece materials at moderate to high spindle speeds. The DIN 338 specification ensures dimensional conformance to international standards, making it a reliable choice for shops sourcing to European or metric specifications. Machinists, tool and die technicians, and production operators are the primary users.

Key Features

• 3.23 mm (0.1272 inch) diameter with a diameter tolerance of -0.018 to 0.000 mm for consistent hole sizing
• Parabolic flute geometry with web thinning reduces cutting thrust and improves chip evacuation
• 130-degree standard point angle optimized for aluminum and general-purpose drilling
• High speed steel construction with bright uncoated finish for visual wear monitoring
• DIN 338 compliant, Series 549, 5xD flute-to-diameter ratio
• Right-hand cut, straight-cylindrical shank for standard chuck compatibility

Compatibility

Designed as a DIN 338 standard jobber length drill bit compatible with any drill chuck or collet accepting a 0.1272-inch straight-cylindrical shank. Primary workpiece material codes K, N, and P indicate suitability for aluminum, non-ferrous metals, and general steels per standard material classification.

Installation Notes

This drill bit is installed by a machinist or tool technician into a compatible drill chuck or collet holder rated for the shank diameter. Ensure the machine spindle is fully stopped and the chuck is securely tightened before beginning any drilling operation. Maximum drilling depth for this bit is 1.227 inches; exceeding this depth without pecking cycles may cause chip packing and bit breakage. Follow applicable workplace safety standards and machine tool operating procedures when selecting feed rate and spindle speed for the workpiece material.