Guhring 9014520098000 Carbide Drill Bit Letter W

Product Description

The GUHRING 9014520098000 is a solid carbide jobber length drill bit sized to Letter W (9.80 mm / 0.3858 inches) and built for precision drilling in demanding shop and production environments. It features a 150-degree split point with web thinning for self-centering entry, reducing the need for a center punch on most materials. The three-flute spiral design in a regular spiral configuration promotes efficient chip evacuation and improved hole finish. Overall length is 3.504 inches (89 mm), with a flute length of 2.165 inches (55 mm) and a maximum drilling depth of 1.587 inches (40.30 mm). The bright, uncoated finish is standard for submicron carbide grades used across a range of work materials. This bit is intended for use by machinists, tool-and-die professionals, and production drilling operations.

This drill bit is suited for high-accuracy drilling in metals and engineered materials where carbide rigidity and point stability are required. The straight-cylindrical shank allows direct chucking in standard drill chucks, collets, and CNC toolholders. The 5xD flute-to-diameter ratio and tapered web geometry make it a practical choice for through-hole and blind-hole applications in ferrous and non-ferrous metals. It is manufactured to DIN 6539 standards, making it appropriate for both manual and CNC drilling setups where tight diameter tolerances are required.

Key Features

• Solid carbide submicron grade construction for rigidity and wear resistance
• 150-degree point angle with web thinning for self-centering drilling
• Three spiral flutes for efficient chip evacuation and improved surface finish
• Bright uncoated finish suitable for a wide range of base metals
• Straight-cylindrical shank fits standard chucks, collets, and CNC holders
• Manufactured to DIN 6539 with a diameter tolerance of -0.015 to 0.000 mm

Compatibility

Designed for use in standard drill chucks, ER collet systems, and CNC spindles accepting a 0.3858-inch straight-cylindrical shank. Fits applications within the 9.00 to 10.00 mm drill bit size range per DIN 6539 specification.

Installation Notes

This bit should be installed by a qualified machinist or CNC operator. Secure the shank fully in the chuck or collet before operation, and verify runout before cutting. Ensure the machine spindle is at a full stop before tool changes. Do not exceed the rated maximum drilling depth of 1.587 inches per pass without retracting to clear chips.