The wire liners are made of high-grade stainless steel and make strong inner threads resistant to heat and corrosion. Their unique design guarantees high-quality threads of high resistance and strength. They are suitable for repairing threads in internal combustion engine heads, gear boxes, flanges, etc.; excellent for hardening threaded parts of light alloys and therefore indispensable in mechanical engineering, electronics and automotive industries. Length: 10 mm, pack contains 25 units.