Expertly engineered for high-efficiency fine pitch threading in structural materials, the Guhring Metric Fine Yellow Ring Spiral Point Gun Tap range is the definitive industrial choice for machine tapping straight-through clearance holes. Operating on the standard 60° ISO Metric Fine thread profile, these premium high-speed steel (HSS-E) tools feature a specialized angular spiral point geometry that cleanly shears material and forcefully drives compact chips forward ahead of the tool cutting action. This reliable forward chip evacuation completely eliminates chip nesting and nesting-related tool failure, which is critical when managing the tighter tolerances required by fine-pitch configurations. Guhring's signature Yellow Ring classification tells CNC programmers and machinists that these fine-thread gun taps are structurally optimized to deliver exceptional tool life and perfect pitch compliance when threading structural steels, mild steel, AS/NZS 3678 250 and 350 grade plate, free-cutting steels, and unalloyed case-hardened steels.

HSS APPLICATIONS

• Primary for machine tapping
• Ideal for through holes as the tap pushes the swarf forwards
• Great for cutting new threads
• Suited for use in a variety of ferrous and non-ferrous materials
• Yellow Ring for cutting - Structural steels like mild steel, 250 and 350 plate, Free cutting steels & Unalloyed case hardened steels

HSS TECHNICAL DATA

• Made from High Speed Steel
• Standard  - DIN 374
• Tolerance - ISO2 / 6H
• Surface - Bright Finish
• Guhring No. 827