Guhring 9005490019000 Jobber Drill Bit 1.9 Mm Hss

Product Description

The GUHRING 9005490019000 is a jobber length drill bit designed for precision hole-making in a wide range of materials. Built to DIN 338 standards, this bit features a 1.9 mm diameter, a 130-degree split point angle, and a parabolic flute geometry that promotes efficient chip evacuation and reduces heat buildup during drilling. The bright uncoated high speed steel construction provides a consistent cutting edge suitable for general-purpose metalworking applications. With an overall length of 46.00 mm (1.8125 inches) and a flute length of 22.00 mm, this bit is sized for standard jobber-length work and fits directly into conventional drill chucks and CNC spindles.

This drill bit is suited for machining aluminum and other non-ferrous metals, as well as low-alloy steels, reflecting its primary workpiece material codes K, N, and P. The straight-cylindrical shank accommodates standard three-jaw chucks and collet systems. The web-thinned, tapered web configuration reduces thrust force at drill entry, making it a practical choice for manual drill press operations, CNC machining centers, and benchtop setups where small-diameter precision drilling is required. It is typically used by machinists and tool-and-die professionals working in light manufacturing and fabrication environments.

Key Features

• 1.9 mm diameter with a 130-degree point angle for accurate, self-centering entry
• Parabolic flute geometry promotes fast chip evacuation and reduces clogging in deep holes
• High speed steel construction with bright uncoated finish for general-purpose metalworking
• Web-thinned, tapered web reduces thrust force and improves penetration in softer metals
• Right-hand cut, straight-cylindrical shank compatible with standard chucks and collets
• Built to DIN 338 specification for consistent dimensional tolerances

Compatibility

Designed for use in standard drill chucks, collet holders, and CNC spindles accepting a 0.0748-inch straight-cylindrical shank. Primary workpiece materials include aluminum, non-ferrous metals, and low-alloy steels per material codes K, N, and P. Conforms to DIN 338 jobber length series 549 specifications.

Installation Notes

Small-diameter drill bits should be installed by a qualified machinist or tooling technician. Ensure the drill press, lathe, or CNC machine is fully powered down and locked out before changing tooling. Secure the shank firmly in the chuck or collet to the correct clamping depth to prevent runout. Avoid excessive feed pressure on small-diameter bits, as deflection and breakage are more likely when feed rates exceed the bit capacity for the workpiece material.