Expertly engineered for high-efficiency thread repair and reinforcement operations in demanding environments, the Guhring Recoil TiN Coated Spiral Point STI Gun Tap range is the definitive industrial choice for machine tapping straight-through clearance holes destined for wire thread inserts. Operating on specialized Screw Thread Insert (STI) dimensions, these premium oversized high-speed steel (HSS-E) tools are precision-ground to cut the exact clearance profiles required by Recoil and Helicoil systems. Each tool is treated with an advanced Titanium Nitride (TiN) coating, delivering high surface hardness and excellent thermal stability to withstand extreme friction during high-speed production cycles. The advanced angular spiral point (gun nose) geometry shears tough structural materials cleanly 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 when preparing insert-ready threads in 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

TECHNICAL DATA

• Made from High Speed Steel
• Standard  - DIN 40435
• Tolerance - 6H
• Surface - TiN Coated
• Guhring No. 1010