Guhring 9055230049800 Cobalt Jobber Drill Bit No. 9

Product Description

The GUHRING 9055230049800 is a cobalt jobber-length drill bit in wire gauge size No. 9, equivalent to 0.1960 inch decimal diameter. Built to DIN 338 standards, it features a 118-degree four-facet split point with web thinning for reduced thrust and improved centering on entry. The M35 cobalt steel construction provides heat resistance for drilling harder or abrasive materials. The bright uncoated finish is standard for general-purpose cobalt tooling. With a 2-flute spiral design and regular helix, the bit clears chips efficiently throughout the cut. Licensed machinists, maintenance technicians, and tool-and-die professionals are the typical end users.

This bit is suited for drilling aluminum, stainless steel, and a range of ferrous and non-ferrous metals where cobalt tooling is specified. The straight-cylindrical shank with a shank diameter of 4.98 mm seats in standard three-jaw keyless or keyed drill chucks. The overall length of 86 mm and flute length of 52 mm make it appropriate for jobber-depth applications in CNC machining centers, drill presses, and handheld power tools where the spindle accepts the shank size. Material workpiece codes K, M, N, and P are listed, covering cast iron, steel, non-ferrous metals, and aluminum alloys.

Key Features

• M35 cobalt steel construction for elevated heat resistance in tough materials
• 118-degree four-facet split point with web thinning reduces walking and entry thrust
• DIN 338 standard jobber length: 86 mm overall, 52 mm flute length
• Right-hand cut, regular spiral flute for standard drilling applications
• Straight-cylindrical shank at 4.98 mm diameter fits standard drill chucks
• Tapered web configuration with web thinning for consistent performance through the flute length

Compatibility

Designed as an OEM-style jobber-length drill bit for use in any machine or handheld drill setup accepting a straight-cylindrical shank of 4.98 mm diameter. Applicable to workpiece material codes K, M, N, and P as specified by the manufacturer.

Installation Notes

Installation is performed by machinists or maintenance technicians using standard drill chuck tooling. Secure the shank fully in the chuck jaws before operation and verify runout is within acceptable tolerance for the application. Always power down and lock out the machine spindle before changing bits. Use appropriate cutting fluid or coolant for the workpiece material even though this bit does not support through-coolant delivery.