Guhring 9005490010400 Jobber Drill Bit Wire 59 Hss

Product Description

The GUHRING 9005490010400 is a jobber-length drill bit sized to wire gauge No. 59, with a decimal diameter of 0.0409 inches. Built from high-speed steel with a bright, uncoated finish, this bit is designed for clean, accurate drilling in non-ferrous and ferrous materials including aluminum. The 130-degree split point and parabolic flute geometry support faster chip evacuation and reduced thrust in production and maintenance drilling environments. Overall length is 1-5/16 inches with a flute length of 15/32 inches. This is a Series 549 tool manufactured to DIN 338 standards, suitable for machinists, tool-and-die professionals, and precision fabricators who need consistent performance in small-diameter work.

This bit is suited for light-duty precision drilling in aluminum, plastics, and mild steel where small-diameter accuracy is critical. The parabolic flute design makes it particularly effective in applications requiring efficient chip removal without pecking cycles. The straight-cylindrical shank fits standard keyless and keyed chucks across drill presses, CNC machining centers, and handheld power tools. Maximum drilling depth is 0.411 inches (10.44 mm), making it appropriate for shallow, precise through-holes or blind bores in thin stock and components.

Key Features

• Wire gauge No. 59 diameter: 0.0409 inches for tight-tolerance small-diameter drilling
• 130-degree point angle reduces thrust and improves self-centering on entry
• Parabolic flute geometry promotes fast chip evacuation and reduced heat buildup
• Web-thinned, tapered web construction lowers cutting resistance
• Bright uncoated high-speed steel finish suits aluminum and non-ferrous primary applications
• Manufactured to DIN 338 standard for consistent dimensional accuracy

Compatibility

Designed as an OEM-style jobber-length drill bit suitable for use in standard drill chucks accepting straight-cylindrical shanks across drill presses, CNC machining centers, and handheld power tools handling small-diameter wire-gauge bits.

Installation Notes

Installation and use of this bit should be performed by machinists or qualified trade professionals familiar with small-diameter tooling. Secure the straight-cylindrical shank firmly in a properly sized chuck before operation to prevent slippage or runout. Use appropriate cutting fluid or coolant when drilling ferrous materials to extend tool life, even though this bit does not include through-coolant capability. Inspect the cutting edges before each use, as small-diameter bits are susceptible to breakage if run at incorrect feed rates or speeds.