Guhring 9055120042000 Taper Length Drill Bit 0.1654 in

Product Description

The GUHRING 9055120042000 is a solid carbide taper length drill bit engineered for high-performance drilling in demanding materials. It features a 140-degree SU point angle with web thinning for self-centering entry and reduced thrust. The 4.20 mm (0.1654 inch) diameter cutting edge is ground with a spiral flute in a right-hand cutting direction. A 6.00 mm straight shank and 7xD flute-to-diameter ratio make this bit suited for deep-hole work in difficult-to-machine alloys. Coolant-through capability supports chip evacuation and heat management at depth. Licensed machinists, tool-and-die shops, and production drilling operations are the primary users of this tooling.

This drill bit is built for production and precision drilling into hard and abrasive workpiece materials including stainless steel, hardened materials, nickel alloy, titanium alloy, cast iron, brass, and steel. The Series 5512 design conforms to DIN 6537 standards, making it compatible with standard toolholding setups that accept straight-shank tooling in the 6.00 mm shank diameter range. It is appropriate for CNC machining centers and manual drilling operations where coolant-through toolholding is available. The coated submicron carbide grade extends tool life in interrupted cuts and abrasive stock.

Key Features

• Solid submicron carbide construction for high wear resistance in hard and abrasive materials
• 140-degree SU point with web thinning for self-centering entry and reduced axial load
• Coolant-through design supports internal chip flushing and heat management at full drilling depth
• 7xD flute-to-diameter ratio allows drilling to a maximum depth of 31.20 mm (1.228 inches)
• Coated finish improves lubricity and extends tool life in stainless steel, nickel alloy, and titanium applications
• Conforms to DIN 6537 for dimensional consistency and toolholder compatibility

Compatibility

Designed as an OEM-style taper length drill bit for use in standard straight-shank toolholders accepting a 6.00 mm shank diameter. Rated for drilling in brass, cast iron, hardened materials, nickel alloy, stainless steel, steel, and titanium alloy per manufacturer specifications.

Installation Notes

Installation and operation should be performed by a qualified machinist or tooling technician familiar with carbide tooling practices. Secure the straight shank fully in a collet or drill chuck rated for the 6.00 mm shank diameter before use. Confirm that the coolant-through supply is active before engaging the workpiece to prevent premature carbide failure from thermal shock. Inspect the cutting edge for chipping before each use, as solid carbide is brittle and sensitive to side-loading or interrupted entry without proper setup.