Guhring 9003360010000 Cobalt Taper Length Drill Bit

Product Description

The GUHRING 9003360010000 is a cobalt taper length drill bit sized at 1.00 mm (0.0394 inches) diameter, designed for demanding drilling applications in hard and abrasive materials. Built to DIN 340 standards, it features a 130-degree standard point angle and a parabolic flute geometry that improves chip evacuation and reduces heat buildup during extended cuts. The bright, uncoated finish is standard for cobalt-grade tooling intended for use without coolant-through capability. A cylindrical shank with no threading keeps setup simple in conventional drill chucks. Licensed machinists, tool-and-die technicians, and precision metalworkers are the primary installers of this tooling.

This drill bit is suited for drilling cast iron, hardened materials, stainless steel, and steel. The 10xD flute-length-to-diameter ratio and overall length of 56.00 mm (2-13/64 inches) make it appropriate for taper-length applications where extra reach beyond jobber-length drill bits is needed. It is typically applied in CNC machining centers, drill presses, and manual spindle operations where consistent hole geometry in ferrous and difficult-to-machine alloys is required.

Key Features

• Cobalt tool material for high-heat resistance in stainless steel and hardened materials
• 130-degree standard point angle for positive cutting engagement on tough alloys
• Parabolic flute design promotes efficient chip removal and reduces clogging
• DIN 340 taper length specification provides extended reach over standard jobber bits
• Web-thinned parallel web construction reduces thrust and improves penetration
• Right-hand cut with cylindrical shank for compatibility with standard drill chucks

Compatibility

Designed as a DIN 340-compliant taper length drill bit for use in standard cylindrical-shank toolholders and drill chucks accepting 0.0394 inch (1.00 mm) diameter shanks.

Installation Notes

Installation and use of precision drill bits of this diameter should be performed by qualified machinists or toolroom technicians familiar with small-diameter tooling. Secure the cylindrical shank fully in a properly sized collet or drill chuck before operation, and verify runout is within acceptable limits to prevent premature breakage at this diameter. Ensure spindle speed and feed rate are appropriate for the work material per established machining parameters. Do not apply side loading or use this bit as a reamer.