Guhring 9005490058000 Jobber Drill Bit 5.8mm Hss

Product Description

The GUHRING 9005490058000 is a jobber-length twist drill bit designed for precision hole-making in a range of materials. Built from high-speed steel (HSS) with a bright, uncoated finish, it measures 5.8 mm (0.2283 inches) in diameter and carries an overall length of 93 mm. The parabolic flute geometry accelerates chip evacuation and reduces heat buildup at the cutting zone, making this bit well-suited for production drilling and general-purpose shop use. The 130-degree split point initiates contact quickly and helps prevent walking on entry. Web thinning further reduces thrust requirements. Machinists, tool and die technicians, and maintenance mechanics are the typical end users.

This drill bit is rated for aluminum and other non-ferrous materials as well as general steels, consistent with its primary workpiece material codes K, N, and P under DIN classification. It fits standard jobber-length drill chucks with a straight cylindrical shank and is well-suited for bench drill presses, CNC drilling centers, and hand-held drill motors where a 5.8 mm bore is required. The parabolic flute design and web-thinned point make it particularly effective in gummy or stringy materials where chip clearing is a concern. Drill depth capacity reaches 48.30 mm at the rated 5xD flute-by-diameter ratio.

Key Features

• 5.8 mm (0.2283 inches) diameter with a diameter tolerance of -0.018 to 0.000 mm for precise hole sizing
• Parabolic flute design promotes fast chip evacuation and reduces clogging during deep drilling passes
• 130-degree drill point angle with web thinning reduces entry thrust and minimizes walking
• High-speed steel construction with bright, uncoated finish suitable for a broad range of workpiece materials
• Right-hand cut, straight cylindrical shank compatible with standard drill chucks
• Conforms to DIN 338 standard, Series 549 high-performance grade

Compatibility

Designed as a DIN 338-compliant jobber-length drill bit for use in standard drill chucks accepting a 0.2283-inch straight cylindrical shank, suitable for aluminum, non-ferrous metals, and general-purpose steels classified under material codes K, N, and P.

Installation Notes

Machinists and maintenance technicians should secure the shank fully in a properly sized chuck before operation and verify chuck runout is within acceptable limits to protect the tight diameter tolerance of this bit. Ensure the workpiece is firmly clamped before drilling to prevent movement and tool breakage. Use cutting fluid or coolant appropriate to the workpiece material when drilling at higher feed rates, even though this bit does not feature through-coolant capability. Follow applicable shop safety practices and machine manufacturer guidelines for spindle speed and feed selection.