Guhring 9055140055000 Screw Machine Drill Bit 0.2165 in

Product Description

The GUHRING 9055140055000 is a solid carbide screw machine length drill bit designed for high-performance drilling in cast iron and steel. It measures 0.2165 inches in diameter with an overall length of 66.00 mm (approximately 2.598 inches) and a flute length of 28.00 mm (approximately 1.102 inches). The 140-degree split point with SU geometry and web-thinned construction reduces thrust and improves centering without a center punch. With a 3xD flute-to-diameter ratio and regular spiral fluting, this bit is suited for short, rigid setups where accuracy and tool life are critical. Licensed trades machinists and industrial drill operators are the primary installers.

This drill bit is built for screw machine and CNC drilling applications in production environments. It performs in cast iron and steel workpieces where consistent hole quality and dimensional accuracy are required. The straight-cylindrical shank with a 6.00 mm diameter fits standard drill chucks and collet holders used in screw machines, machining centers, and drill presses. The maximum drilling depth is 0.778 inches (19.75 mm), making it appropriate for short-depth through and blind holes in tight-tolerance work.

Key Features

• Solid carbide submicron-grade construction for extended tool life in ferrous materials
• 140-degree SU split point with web thinning reduces entry thrust and improves self-centering
• Regular spiral flute design promotes efficient chip evacuation in steel and cast iron
• Straight-cylindrical shank compatible with standard chucks and collet systems
• Coated finish for improved wear resistance and heat management
• Conforms to DIN 6537K specification for consistent dimensional tolerances

Compatibility

Designed as an OEM-style replacement or direct-use drill bit for screw machine and CNC drilling setups requiring a 0.2165-inch diameter solid carbide bit with a straight-cylindrical shank. Fits within the GUHRING Series 5514 product family. Diameter tolerance is plus 0.004 to plus 0.016 mm per DIN 6537K.

Installation Notes

Installation is performed by machinists or CNC operators familiar with carbide tooling. Power down and lock out the machine before changing tooling. Carbide tooling is brittle and should not be subjected to side loads or impact during installation. Verify chuck or collet runout before use to avoid premature chipping at the cutting edge.