Expertly engineered for high-efficiency coarse pitch threading in structural materials, the Somta UNC Spiral Flute Tap range is the definitive industrial choice for machine tapping blind holes. Operating on the standard 60° Unified coarse thread profile, these premium high-speed steel (HSS-E) tools feature an advanced 40° right-hand spiral flute geometry. This specific configuration cleanly shears tough material and forcefully pulls compact chips up and out of the workpiece, completely eliminating the risk of chip packing and catastrophic tool breakage at the bottom of deep pockets. Engineered by Somta to deliver exceptional torsional rigidity and perfect pitch compliance, these heavy-duty coarse-thread machine taps are structurally 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

• Suitable for general purpose use in hand or machine operations
• Taps are produced with precision ground threads
• Good 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