Expertly engineered for high-efficiency coarse pitch threading in heavy-duty structural materials, the Guhring Metric Coarse Gold 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 Coarse thread profile, these premium high-speed steel (HSS-E) tools feature an advanced steam-tempered surface treatment that acts as a porous layer to retain cutting fluids, significantly reducing thermal load and friction during aggressive production paths. The specialized angular spiral point (gun nose) geometry cleanly shears tough 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 in high-speed manufacturing environments. Guhring's signature Gold Ring classification signals to CNC programmers and machinists that these metric 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, unalloyed case-hardened steels, and high-tensile heat-treatable alloys.

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
• Gold Ring for cutting - Structural steels - mild steel, 250 and 350 plate, Free cutting steels, Case hardened steels, Heat treatable steels, Nitriding steels, Spheroidal graphite cast iron

HSS TECHNICAL DATA

• Made from High Speed Steel
• Standard  - DIN 371
• Tolerance - ISO2 / 6H
• Surface - Steam Tempered
• Guhring No. 5733