PORTER-CABLE Bare-Tool PC1801ID 18-Volt 1/4" Hex Drive Cordless Impact Driver (Tool Only, No Battery) Impact driver delivers high-torque output without kick-back With a length of only 6.5-in, the Porter Cable impact driver fits into tight areas not accessible b Heavy-duty cold forged impact block is designed for maximum durability Impact technology delivers high-torque output without kick-back: uses either NiCd or LiIon Batterie Works with 18V Porter Cable Batteries: PC18B, PCC489N, PC18BL, PC18BLX or PC18BLEX (sold separately)