Guhring 9055140072000 Carbide Screw Machine Drill Bit

Product Description

The GUHRING 9055140072000 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding industrial applications. Built to DIN 6537 K standards, this bit measures 0.2835 inches in diameter with a 140-degree split point (SU-type) for accurate self-centering entry and reduced thrust. The overall length is 79.00 mm with a 41.00 mm flute length. The straight-cylindrical shank and web-thinned, parallel web configuration make this bit suitable for use in CNC machining centers, drill presses, and screw machine setups where precision and tool life are critical.

This drill bit is engineered for cutting cast iron and steel, including high-alloy and hardened steels where a submicron carbide grade is required. The screw machine length format provides added rigidity compared to jobber-length bits, reducing deflection in short-hole drilling. It is a right-hand cut, spiral flute design with a 3xD flute-to-diameter ratio, appropriate for through-hole and blind-hole work in production machining environments. Machinists, tool and die technicians, and maintenance professionals working with ferrous materials will find this bit suited to their applications.

Key Features

• Solid carbide construction with submicron carbide grade for extended tool life in ferrous materials
• 140-degree SU split point promotes accurate entry and reduces walking on hard surfaces
• Web-thinned parallel web lowers thrust requirements and improves chip evacuation
• Screw machine length body provides greater rigidity and reduced deflection versus jobber-length bits
• Right-hand spiral flute design with 3xD ratio for effective chip clearing
• Meets DIN 6537 K specification for dimensional consistency

Compatibility

Designed as a direct-fit replacement or standard tooling selection for screw machine, CNC, and drill press setups requiring a 0.2835-inch diameter carbide drill in the DIN 6537 K screw machine length format. Primary workpiece materials are cast iron and steel.

Installation Notes

Installation and use should be performed by qualified machinists familiar with carbide tooling requirements. Secure the straight-cylindrical shank fully in a precision collet or drill chuck rated for carbide tooling before use. Carbide bits are brittle and susceptible to fracture if subjected to side loads, interrupted cuts without proper support, or improper runout. Verify spindle runout and feed rates are within the tool manufacturer's recommended range before beginning a production run.