Expertly engineered for high-efficiency thread repair and reinforcement operations in demanding environments, the Guhring Recoil TiN Coated Spiral Flute STI Tap range is the definitive industrial choice for machine tapping blind 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 exceptional surface hardness and a low coefficient of friction to withstand extreme thermal loads during high-speed production cycles. The advanced 40° right-hand spiral flute geometry cleanly shears 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. This range is structurally optimized to deliver exceptional tool life and perfect pitch compliance 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 blind holes

TECHNICAL DATA

• Made from High Speed Steel
• Standard  - DIN 40435
• Tolerance - 6H
• Surface - TiN Coated
• Guhring No. 1011