Guhring 9055140104000 Carbide Screw Machine Drill Bit

Product Description

The GUHRING 9055140104000 is a solid carbide screw machine length drill bit designed for high-performance drilling in cast iron and steel. Built to DIN 6537 K standards, it features a 0.4094-inch diameter, a 140-degree split point (SU type), and a coated finish that extends tool life in demanding production environments. The two-flute spiral design with web thinning reduces thrust and improves chip evacuation. At 102 mm overall length with a 55 mm flute length, this stub-length geometry provides rigidity for accurate hole entry. Licensed trades machinists and maintenance technicians working in metal fabrication, job shops, and industrial maintenance turn to this bit for consistent, repeatable results.

This drill bit is suited for production and maintenance drilling operations in cast iron and steel workpieces. The screw machine length format keeps the tool short and stiff, making it well-suited for CNC machining centers, turret lathes, and drill presses where deflection must be minimized. The straight-cylindrical shank with a 12 mm diameter seats securely in standard drill chucks and collet systems. Series 5514 positions this tool in the high-performance tier of the GUHRING catalog for shops that require tight-tolerance hole sizing in ferrous materials.

Key Features

• Solid submicron carbide construction for high wear resistance in ferrous materials
• 140-degree SU split point reduces thrust and improves self-centering on entry
• Web-thinned parallel web configuration lowers cutting forces
• Coated finish extends tool life in cast iron and steel applications
• Screw machine length body provides maximum rigidity and reduced deflection
• Meets DIN 6537 K specification for consistent dimensional tolerances

Compatibility

Designed for drilling cast iron and steel workpieces. Compatible with standard drill chucks and collet holders accepting a 12 mm straight-cylindrical shank. Intended for use in CNC machining centers, turret lathes, and drill press setups where screw machine length tooling is specified.

Installation Notes

Install in a properly sized chuck or collet to the full shank engagement depth before securing. Confirm spindle runout is within acceptable limits before drilling, as carbide tooling is sensitive to side loading and vibration. Coolant-through is not supported on this tool; apply external coolant or cutting fluid appropriate for the workpiece material. Inspect the cutting edges before each use and remove from service at the first sign of chipping or edge wear.