... A: 11mm,12mm,13mm,14mmType B: 15mm,16mm,17mmType C: 18mm,19mm,20mm,21mm,22mm,23mm, 24mm,25mm,26mm,27mm,30mm ... Size: 28*32*17CMStandard export Carton Huayi Impact SocketsSpecial heat-treated for the best combination of strength and impact resistance.Optimum ...