Guhring 9002050007100 Jobber Drill Bit 0.028 in Hss

Product Description

The GUHRING 9002050007100 is a jobber-length drill bit designed for precision drilling in ferrous materials including cast iron and steel. Built to DIN 338 standards from M2 high speed steel with a bright, uncoated finish, this bit features a 118-degree standard point angle and a right-hand spiral flute configuration. The straight-cylindrical shank measures 0.71 mm in diameter, and the overall length is 28.00 mm with a 9.00 mm flute length. Web-thinned geometry with a tapered web reduces thrust and improves chip evacuation on entry. Intended for use by machinists, HVAC fabricators, plumbers, and electricians requiring tight-tolerance small-diameter drilling.

This Series 205 drill bit is suited for general-purpose drilling applications in residential and light commercial environments where small-diameter, high-accuracy holes are required. It handles cast iron and steel workpieces effectively, making it a go-to choice for sheet metal penetrations, bracket fabrication, and component mounting tasks in mechanical and electrical trades. The 5xD flute-to-diameter ratio supports stable chip removal in through-hole drilling at this size class.

Key Features

• M2 high speed steel construction for durability in ferrous materials
• 118-degree standard point angle with web-thinned, tapered web for reduced entry thrust
• Bright, uncoated finish for general-purpose use without coating interference
• Right-hand cut, regular spiral flute for efficient chip evacuation
• DIN 338 specification compliance ensures consistent dimensional accuracy
• Diameter tolerance of +0.000 to -0.012 mm for tight-fit applications

Compatibility

Designed as a general-purpose jobber-length drill bit per DIN 338 for use in standard drill chucks and collet systems accepting a straight-cylindrical shank at this diameter class.

Installation Notes

This drill bit is installed by machinists and trade professionals using a hand drill, drill press, or CNC setup with a compatible chuck or collet. Secure workpieces firmly before drilling to prevent deflection at this small diameter. Use appropriate cutting fluid or lubricant when drilling steel to extend tool life. Inspect the bit for tip damage before each use, as small-diameter bits are susceptible to breakage under side load or misalignment.