Guhring 9014520048000 Carbide Jobber Drill Bit 4.80mm

Product Description

The GUHRING 9014520048000 is a solid carbide jobber length drill bit designed for precision drilling in demanding metalworking applications. Manufactured to DIN 6539 standards, this Size 12 bit measures 4.80mm (0.1890 inches) in diameter with a 150-degree split point and a web-thinned, tapered web for self-centering entry without a center punch. The submicron carbide grade provides the hardness and wear resistance needed for production drilling in cast iron, hardened steels, and non-ferrous alloys. Three spiral flutes with a 5xD flute-to-diameter ratio promote efficient chip evacuation over the 35mm flute length.

This drill bit is suited for job shop and production environments where tight hole tolerances and consistent tool life are required. The straight-cylindrical shank seats securely in standard drill chucks or collet holders on CNC machining centers, drill presses, and manual mills. Its right-hand cut and regular spiral geometry make it a general-purpose tool across a range of ferrous and non-ferrous materials. The bright, uncoated finish allows direct visual inspection of the cutting edge before use.

Key Features

• Submicron solid carbide construction for extended tool life in hard and abrasive materials
• 150-degree point angle with web thinning enables self-centering entry and reduces thrust force
• Three-flute design improves chip flow and surface finish compared to standard two-flute geometry
• DIN 6539 standard compliance ensures dimensional consistency and interchangeability
• Straight-cylindrical shank fits standard drill chucks and collet systems without adapters
• Bright, uncoated finish compatible with a wide range of cutting fluids and workpiece materials

Compatibility

Designed as an OEM-style replacement or direct-use tooling option for applications requiring a Size 12 wire gauge jobber drill in the 4.00mm to 5.00mm diameter range, conforming to DIN 6539 Series 1452 specifications.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before changing or inspecting the bit. Seat the shank fully and concentrically in the chuck or collet to prevent runout, which can cause premature carbide chipping. Coolant-through is not supported on this bit; apply cutting fluid externally per shop practice for the workpiece material.