Guhring 9005350025000 Taper Length Drill Bit 0.0984 in

Product Description

The GUHRING 9005350025000 is a taper length twist drill bit designed for precision drilling in metalworking applications. Built from high speed steel (HSS) with a bright/uncoated finish, this bit features a parabolic flute geometry and a 130-degree point angle. The overall length measures 3.734 inches with a flute length of 2.4375 inches, giving it extended reach compared to jobber-length bits. The cylindrical shank matches the 0.0984 inch (2.50 mm) cutting diameter. Web-thinned construction reduces entry force and improves chip evacuation. Manufactured to DIN 340 specification, this bit is suited for production environments where consistent hole quality matters.

This drill bit is intended for use in aluminum alloy, cast iron, and steel. The parabolic flute profile handles chip clearance efficiently in these materials, making it a practical choice for CNC machining centers, drill presses, and hand-held power tools. At a 10xD flute-to-diameter ratio, the bit handles moderate-depth holes without excessive deflection. The Series 535 designation identifies it within the Guhring standard drill line, which is stocked by tool cribs and machine shops that require reliable, repeatable small-diameter drilling.

Key Features

• 0.0984 inch (2.50 mm) diameter with a diameter tolerance of +0.000 to -0.014 mm for consistent fit
• 130-degree standard point angle for general-purpose entry across steel, cast iron, and aluminum alloy
• Parabolic flute with web thinning for improved chip evacuation and reduced thrust
• Parallel web configuration maintains core strength along the flute length
• DIN 340 taper length specification — longer than jobber, shorter than long-series
• No coolant-through — suitable for conventional dry or flood coolant setups

Compatibility

Designed as a DIN 340 taper length replacement for applications requiring a 2.50 mm (0.0984 inch) HSS drill bit in aluminum alloy, cast iron, and steel. Compatible with any standard cylindrical-shank drill chuck accepting the 0.0984 inch shank diameter.

Installation Notes

Installation and use of this drill bit should be performed by machinists or qualified trade personnel familiar with rotary cutting tools. Secure the cylindrical shank fully in a properly rated drill chuck or collet before operation. Inspect the cutting edges for wear or damage before each use — a chipped small-diameter bit can deflect or break without warning. Follow applicable shop safety protocols and machine manufacturer guidelines for speeds and feeds appropriate to the workpiece material.