Guhring 9055230022600 Cobalt Jobber Drill Bit No. 43

Product Description

The GUHRING 9055230022600 is a cobalt jobber length drill bit sized to wire gauge No. 43, with a decimal diameter of 0.0890 inches. Built to DIN 338 standards and manufactured from M35 cobalt steel, this bit delivers reliable performance in demanding drilling applications. It features a 118-degree four-facet split point with web thinning for reduced thrust and cleaner entry. The overall length is 53.00 mm with a 27.00 mm spiral flute length and a straight-cylindrical shank diameter of 2.26 mm. Right-hand cut with a regular spiral and tapered web configuration, it is suited for use by machinists, maintenance technicians, and trade professionals requiring precision in small-diameter drilling.

This drill bit is designed for use in aluminum and a range of additional workpiece materials, including steel and cast materials consistent with material codes K, M, N, and P under DIN classification. It fits standard drilling operations where a jobber length, straight-shank bit is required. The maximum drilling depth is 23.61 mm (0.9300 inches), and the flute-to-diameter ratio is 5xD, making it appropriate for through-hole and moderate-depth applications in production or field maintenance environments. No coolant-through capability is present, so external lubrication or coolant application should be managed conventionally.

Key Features

• M35 cobalt steel construction for heat and wear resistance in demanding materials
• 118-degree four-facet split point with web thinning for reduced entry force and accurate starts
• DIN 338 standard jobber length for compatibility with standard drill chucks and fixtures
• Right-hand cut with regular spiral flute for efficient chip evacuation
• Bright uncoated finish suitable for general-purpose and light production drilling
• Straight-cylindrical shank fits standard three-jaw chucks without adapters

Compatibility

Designed as a DIN 338 jobber length replacement drill bit for use in standard drilling equipment accepting a 2.26 mm straight-cylindrical shank, suitable for wire gauge No. 43 hole applications across aluminum and compatible workpiece materials.

Installation Notes

This bit is installed by machinists and maintenance technicians using standard drill presses, hand drills, or CNC drilling equipment with a compatible chuck size. Secure the shank fully in the chuck and verify runout before drilling. Apply appropriate cutting fluid when drilling steel or harder alloys to extend tool life. Inspect the cutting edges before each use and discard bits showing chipping or excessive wear.