Guhring 9055370014000 Cobalt Taper Drill Bit 54

Product Description

The GUHRING 9055370014000 is a taper length twist drill bit built from HSS-E cobalt steel with a TiN (titanium nitride) coating. Designed for demanding drilling applications, it carries a 118-degree split point that reduces walking and lowers the thrust needed to start a hole. The parabolic flute geometry promotes fast chip evacuation, making it well suited for deep-hole drilling at a 10xD flute-to-diameter ratio. With a 0.0550 inch (wire size 54) cutting diameter and a straight cylindrical shank, it fits standard drill chucks without modification. The overall length is 70 mm and the flute length is 45 mm. Installation is handled by machinists, toolroom technicians, and maintenance trades working with precision metalworking equipment.

This drill bit is intended for use in ferrous and non-ferrous metals where extended tool life and accurate hole geometry are required. The cobalt HSS-E substrate resists heat buildup during prolonged cuts, and the TiN coating adds surface hardness to extend edge life in production environments. Typical applications include tapping operations, jig drilling, and through-hole work in steel, stainless, aluminum, and cast iron. The web-thinned point reduces cutting load at entry. Maximum drilling depth is 42.90 mm (1.689 inches). This bit is manufactured to DIN 340 specification and conforms to DIN 338 standards, ensuring dimensional consistency for close-tolerance work.

Key Features

• HSS-E cobalt substrate for heat resistance in hard and abrasive materials
• TiN coating adds surface hardness and extends cutting edge life
• 118-degree split point reduces drill walk and lowers entry thrust
• Parabolic flute geometry promotes efficient chip evacuation at 10xD depth ratio
• Web-thinned point lowers cutting force and reduces heat at entry
• Manufactured to DIN 340 specification with DIN 338 compliance

Compatibility

Designed as an OEM-style taper length drill bit for use in standard drill chucks and CNC drilling operations requiring a straight cylindrical shank at wire size 54 (0.0550 inch diameter).

Installation Notes

This drill bit is installed by machinists and maintenance technicians in drill presses, CNC machining centers, or hand-held power drills equipped with a compatible chuck. Ensure the machine spindle is fully stopped and locked out before changing tooling. Secure the shank fully in the chuck to the recommended grip depth to prevent runout. Do not exceed the maximum drilling depth of 42.90 mm to avoid chip packing and bit deflection.