Set adattatore presa gambo esagonale a 1/4 3/8 1/2" punte trapano avvitatore a percussione barra 8pz
1/4 x 1/4 x 50mm ------ 1/4 " shank can be converted to 6.35mm square head. 3/8 x 1/4 x 50mm ------ 1/4 " shank can be converted to 9.53mm square head. 1/2 x 1/4 x 50mm ------ 1/4 " shank can be converted to 12.7mm square head.