Guhring 9055100115000 Carbide Screw Machine Drill Bit

Product Description

The GUHRING 9055100115000 is a solid carbide screw machine length drill bit engineered for high-performance drilling in demanding production environments. Built to DIN 6537 K standards, it features a 140-degree split point (SU type) with web thinning for reduced thrust and cleaner entry. The two-flute spiral design and coolant-through capability make it well suited for high-speed machining operations where heat and chip evacuation are critical. At 11.50 mm (0.4528 inches) in diameter, it carries a tight diameter tolerance of +0.007 to +0.025 mm, supporting consistent hole quality across production runs. Licensed machinists and toolroom technicians typically specify this bit for CNC and conventional drilling applications.

This drill bit is designed for cutting cast iron and steel workpieces in screw machine and general production drilling setups. The straight-cylindrical shank at 12.00 mm diameter seats securely in standard drill chucks and collet holders. The screw machine length format — shorter overall length for rigidity — is preferred in high-cycle production settings where deflection and runout must be minimized. The 3xD flute-to-diameter ratio and 55.00 mm flute length support chip clearance at depths up to 52.00 mm.

Key Features

• Solid carbide construction for extended tool life in ferrous materials
• 140-degree SU point with web thinning reduces entry thrust and walking
• Coolant-through design supports high-speed, deep-hole drilling
• Tight diameter tolerance (+0.007 to +0.025 mm) for consistent bore sizing
• DIN 6537 K compliant for use in standardized tooling systems
• Submicron carbide grade for improved edge retention and wear resistance

Compatibility

Designed as an OEM-style replacement or direct-fit tooling option for screw machine length drill applications in cast iron and steel. Primary workpiece materials are cast iron and steel as specified by the manufacturer. Part of the GUHRING Series 5510 product line.

Installation Notes

Installation and tool changes should be performed by qualified machinists or toolroom personnel with the machine fully powered down and locked out per applicable OSHA lockout/tagout procedures. Ensure the straight-cylindrical shank is fully seated and torqued in the chuck or collet holder before operation. Coolant-through setups require confirming spindle coolant supply compatibility before running. Inspect the cutting edges for chipping or wear before each use and replace the bit if edge integrity is compromised.