Vcoil STI-Taps Thread Repair Kit, set of 2pcs Wire Thread Inserts 1.5D - M40x3 FMH and features a left-hand spiral

and features a left-hand spiral flute with right-hand cutting for consistent finishes

delivering long-lasting performance and stable measurements

extending life between tool changes

Left‑hand spiral flute with right‑hand cutting: Optimizes chip control and provides a smooth finish with reliable cutting action for accurate bore enlargement

UNJS) and the core UNJ family

Vcoil STI-Taps Thread Repair Kit, set of 2pcs Wire Thread Inserts 1.5D - M40x3 FMH and features a left-hand spiralRestore damaged or worn threads quickly and reliably with the Vcoil STI Taps Thread Repair Kit a practical two piece wire thread insert set designed for maintenance, installation, and small batch production. Built with Thread Armour Plating for materials with low shear strength, it delivers durable, long lasting internal threads that you can trust. Set Includes: 2 stainless steel wire thread inserts (DIN 8140) with Type S designation and ISO 2 (6H)