muylux 4.0ah battery cordless impact wrench, brushless 1/2 impact gun, 320ft-lbs(430n.m) 20v high torque power impact driver, electric impact for car home 1 battery yellow is up for auction in Tools & Home Improvement. The current bid is $1.00, 97% below the $39.99 MSRP, in As Is condition. This auction has ended — similar items appear in live auctions regularly.