| IRWIN 1877499 Socket Adapter,3/8 In Sq To 1/4 In Sq Socket Adapter, Black Oxide, Locking Yes, Output Drive Male, Square, 1/4 in, Output Drive Shape Square, Output Drive Size 1/4 in, Output Drive Gender Male, Impact, Input Drive Female, Square, 3/8 in, Input Drive Shape Square, Input Drive Size 3/8 in,... ... more IRWIN 1877499 Socket Adapter,3/8 In Sq To 1/4 In Sq Socket Adapter, Black Oxide, Locking Yes, Output Drive Male, Square, 1/4 in, Output Drive Shape Square, Output Drive Size 1/4 in, Output Drive Gender Male, Impact, Input Drive Female, Square, 3/8 in, Input Drive Shape Square, Input Drive Size 3/8 in,... | | $14.35 go to store |