Guhring 9055140107200 Carbide Screw Machine Drill Bit

Product Description

The GUHRING 9055140107200 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built to DIN 6537K standards, it features a 0.42 inch (27/64 inch) diameter, a 140-degree split point (SU point type), and a web-thinned, parallel web construction that reduces entry force and improves hole quality. The two-flute spiral design with a 3xD flute-to-diameter ratio and coated finish supports efficient chip evacuation and extended tool life. A licensed machinist or tooling specialist typically selects and installs this bit for precision metalworking operations.

This drill bit is suited for right-hand cutting in cast iron and steel workpieces, making it a practical choice for machining operations where tight tolerances and consistent performance are required. The screw machine length profile keeps the bit compact and rigid, which helps control deflection during short-hole drilling. With a maximum drilling depth of 1.532 inches (38.92 mm) and a straight-cylindrical shank with a 12 mm shank diameter, it mounts directly into standard drill chucks and collet holders used in CNC machining centers, drill presses, and manual machines.

Key Features

• Solid carbide construction with submicron material grade for hardness and wear resistance
• 140-degree SU point with web thinning for reduced thrust and clean entry on steel and cast iron
• Coated finish extends tool life in abrasive workpiece materials
• Screw machine length for maximum rigidity and reduced deflection
• Straight-cylindrical shank fits standard drill chucks and collet systems
• Meets DIN 6537K specification for consistent dimensional accuracy

Compatibility

Designed as an OEM-style replacement or direct-use tooling for machining operations involving cast iron and steel workpieces, compatible with standard drill chucks and collet holders accepting a 12 mm straight-cylindrical shank.

Installation Notes

Installation and use should be performed by a qualified machinist or tooling technician. Ensure the machine spindle and chuck are fully de-energized and at rest before mounting or removing the bit. Secure the straight-cylindrical shank firmly in a collet or drill chuck to the capacity of the holder before initiating any cutting operation. Coolant-through is not supported on this bit, so external coolant or cutting fluid application should be evaluated based on material and speed requirements.