Transform Your Impact Socket Wrench Into An Impact Driver With The Shockwave™ 3/8 In. Square By 1/4 In. Hex Impact Adapter. Made With Proprietary Heat-Treated Steel, This Dependable Device Is Built to Withstand Frequent Use and Saves You The Expense Of Having to Buy A Separate Drill Driver. Compatible With 3/8 In. Square Input Drives, It Allows You to Utilize Any 1/4 In. Hex Bit For A Variety Of Tightening and Unscrewing Tasks.