Wera 781/5 Set 1 Socket Wrench Adapter Set 05042680001Robust textile belt with 5 connection parts: 781 A: 1 4" square head socket drive, for 3 8" and 1 2" square head socket wrench inserts with ball lock; 781 B: 3 8" square head socket drive, for 1 4" and 1 2" square head socket wrench inserts with ball lock; 781 C: 1 2" square head socket drive, for 3 8" square head socket wrench inserts with ball lock. Set with 5 connection parts (adapters) for square head socket wrench inserts With secure socket