Expertly engineered for high-efficiency coarse pitch threading in structural materials, the Somta UNC Spiral Point Gun Tap range is the definitive industrial choice for machine tapping straight-through clearance holes. Operating on the standard 60° Unified coarse 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, maximizing cycle speeds on high-volume production lines. Engineered by Somta to deliver exceptional torsional rigidity and perfect pitch compliance, these heavy-duty coarse-thread machine taps are specifically optimized to maximize tool life when processing 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

HSS TECHNICAL DATA

• Made from High Speed Steel
• Standard  - ISO529
• Tolerance - 2B