Strong, extremely resilient, and durable: High-quality special steels, whose compositions are carefully tailored to the respective application, are drop-forged. They are hardened in a continuous furnace without scaling or edge decarburization. This reliably prevents the harmful “soft skin effect,” ensuring the tool retains its full stability. Quenching takes place in an oil bath. This prevents both stress and warping. The result is extremely tight tolerances in the wrench jaws, which reliably prevent jamming or slipping during daily use. The Stahlwille Quality Assurance System ensures consistent, reliable quality of the wrenches through defined inspections. - Chrome-alloyed steel, chrome-plated - Same jaw width on both sides, one side angled at 75°. - Equipped with the Stahlwille Anti-Slip-Drive profile, which allows high force transmission to the flanks of screws and nuts without damaging them. - 1 plastic pouch - 15 double-ended wrenches: 3.2 - 3.5 - 4 - 4.5 - 5 - 5.5 - 6 - 7 - 8 - 9 - 10 - 11 - 12 - 13 - 14 mm