Guhring 9055140074000 Screw Machine Drill Bit 0.2913in

Product Description

The GUHRING 9055140074000 is a solid carbide screw machine length drill bit designed for high-performance drilling in demanding industrial and trade applications. Built to DIN 6537 K standards, this bit features a 140-degree split point (SU point type) with web thinning for reduced thrust and cleaner entry. The submicron carbide grade and coated finish extend tool life in abrasive materials. At 0.2913 inches in diameter with a straight-cylindrical shank, it suits precision hole-making tasks where rigidity and dimensional accuracy are critical. Machinists, tool-and-die technicians, and maintenance professionals working on production equipment or fabrication setups will find this bit well-suited to repetitive, tight-tolerance drilling.

This drill bit is intended for use in cast iron and steel workpieces, covering a broad range of ferrous materials common in manufacturing, maintenance, and mechanical assembly environments. The screw machine length body keeps overhang short for improved rigidity on drill presses, CNC machining centers, and benchtop equipment. The 3xD flute-to-diameter ratio supports chip evacuation in shallow to moderate depth holes up to 1.177 inches deep. It is a single-piece, right-hand-cut tool packaged individually.

Key Features

• Solid submicron carbide construction for extended tool life in ferrous materials
• 140-degree SU split point with web thinning reduces entry thrust and walking
• Coated finish improves wear resistance and surface lubricity
• Screw machine length body minimizes deflection for tighter hole tolerances
• Straight-cylindrical shank fits standard drill chucks and collet holders
• Conforms to DIN 6537 K specification for dimensional consistency

Compatibility

Designed for drilling cast iron and steel workpieces; fits standard drill chucks and collet systems accepting an 8 mm straight-cylindrical shank, consistent with Series 5514 screw machine length carbide drill bits per DIN 6537 K.

Installation Notes

Installation and use of solid carbide drill bits should be performed by qualified machinists or maintenance technicians familiar with cutting tool setup. Ensure the spindle and work-holding equipment are fully stopped and locked out before changing tooling. Carbide is brittle — avoid side loading, interrupted cuts without proper feed rate adjustment, or dropping the bit on hard surfaces. Confirm shank diameter and chuck capacity before seating the tool, and follow machine manufacturer guidelines for spindle speed and feed rate relative to workpiece material.