Guhring 9055140087000 Carbide Screw Machine Drill Bit

Product Description

The GUHRING 9055140087000 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding industrial applications. Built to DIN 6537K standards, this right-hand cut bit features a 140-degree split point (SU point type) with web thinning for reduced thrust and cleaner entry. The 2-flute spiral configuration and parallel web geometry promote efficient chip evacuation. At 0.3425 inches in diameter, it is suited for close-tolerance work, with a diameter tolerance of +0.006 to +0.021 mm. Licensed HVAC technicians, machinists, and maintenance tradespeople working with cast iron and steel will find this bit appropriate for precision drilling tasks in both shop and field environments.

This drill bit is engineered for primary use in cast iron and steel workpieces. The screw machine length format provides a shorter, stiffer profile compared to jobber-length bits, making it well-suited for drill press, CNC, and turret lathe setups where rigidity and repeatability matter. The 3xD flute-to-diameter ratio supports a maximum drilling depth of 1.3370 inches (33.95 mm), which covers the majority of typical through-hole and blind-hole operations in this diameter range. It is sold individually.

Key Features

• Solid submicron carbide construction for extended tool life in abrasive materials
• 140-degree SU split point with web thinning reduces entry thrust and minimizes walking
• Coated finish for improved wear resistance and heat management
• Screw machine length provides added rigidity over standard jobber-length bits
• 2-flute regular spiral geometry promotes chip clearance in cast iron and steel
• Conforms to DIN 6537K specification for consistent dimensional accuracy

Compatibility

Designed for drilling cast iron and steel workpieces. Part of GUHRING Series 5514, covering the 0.3000 to 0.3500 inch diameter range. Fits standard straight-cylindrical chuck holders accepting a 10 mm shank diameter.

Installation Notes

Installation should be performed by qualified machinists or maintenance technicians familiar with carbide tooling. Secure the shank fully in a compatible chuck or collet before operation, and verify runout is within acceptable limits to avoid premature edge chipping. Carbide tooling is brittle — avoid side loading, interrupted cuts without appropriate feed adjustments, or striking the bit against hard surfaces during handling. Always bring spindle to full speed before engaging the workpiece, and follow machine manufacturer feed-and-speed guidelines for carbide in the target material.