Description: 3 Pcs extra long adapter set, Set includes sizes: 1/4, 3/8 and 1/2 (inch), 4 Pcs converter set, Nickel/chrome plated adapters 3 Pcs adaptor set made from chrome vanadium steel，Complete with ball bearing locking head, Turns any power drill into a power nut driver; display packed 4 Pcs converter Set includes sizes 1/2-inch(F) x 3/8-inch(M), 3/8-inch(F) x 1/4-inch(M), 3/8-inch(F) x 1/2-inch(M), 1/4-inch(F) x 3/8-inch(M) 7 Pcs Combo Set : 3 Pcs long adaptor set +4 Pcs converter set Made from rust-resistant chrome-vanadium steel Package Includes: 7Pieces in total. 4 Pcs converter Set includes sizes 1/2-inch(F) x 3/8-inch(M), 3/8-inch(F) x 1/4-inch(M), 3/8-inch(F) x 1/2-inch(M), 1/4-inch(F) x 3/8-inch(M) 3 Pcs extra long adapter set, Set includes sizes: 1/4, 3/8 and 1/2 (inch) Note: Please allow slight size errors caused by manual measurements. Please allow slight difference between the pictures and the actual item due to different lights.