Guhring 9055120069000 Taper Length Drill Bit 0.272 in Carbide

Product Description

The GUHRING 9055120069000 is a solid carbide taper length drill bit designed for precision drilling in demanding materials. Built to DIN 6537 standards, it features a 140-degree split point (SU type) with web thinning for self-centering entry and reduced thrust. The straight shank measures 0.3150 inches in diameter, and the overall tool length is approximately 4.567 inches (116 mm). Coolant-through capability supports chip evacuation and heat management during deep-hole drilling. The spiral flute geometry and submicron carbide substrate make this bit well-suited for shops running tight-tolerance work on difficult alloys.

This drill bit is engineered for use on hard and abrasive materials including stainless steel, hardened materials, nickel alloy, titanium alloy, cast iron, steel, and brass. The 7xD flute-to-diameter ratio allows a maximum drilling depth of 2.585 inches (65.65 mm), making it appropriate for production machining environments as well as tool rooms. It is typically run in CNC machining centers, drill presses, and manual mills where consistent hole quality and tool life are required. Series 5512 identifies the product family within the GUHRING taper length carbide drill lineup.

Key Features

• Solid submicron carbide construction for extended tool life in hard and abrasive materials
• 140-degree SU split point with web thinning for self-centering and reduced entry thrust
• Coolant-through design aids chip evacuation and thermal control in deep-hole applications
• 7xD flute ratio supports drilling depths up to 2.585 inches (65.65 mm)
• Straight shank with 0.3150-inch diameter for standard collet and chuck compatibility
• Meets DIN 6537 standards; coated finish for added wear resistance

Compatibility

Designed as an OEM-specification taper length drill bit for use in standard straight-shank toolholders, collet chucks, and drill press quills accepting a 0.3150-inch shank diameter. No specific machine model compatibility was stated in the product data.

Installation Notes

Installation and operation of this drill bit should be performed by a qualified machinist or tooling technician. Ensure the machine spindle is fully stopped and locked out before inserting or removing the tool from the holder. Verify collet or chuck bore size matches the 0.3150-inch shank diameter before clamping to prevent runout. Follow the material manufacturer and GUHRING feed-and-speed recommendations for the specific workpiece material; never exceed the rated maximum drilling depth of 2.585 inches.