We picked up the jackhammer and air compressor Friday, Jim worked all day Saturday on both rocks. I felt sorry for him, I had no idea the jack hammer weighed 90 pounds, plus the hose weighed about 10 pounds. I wonder how many times he lifted it up and down, I know I never could have done it, maybe drag it from place to place but never lift it! He took a half hour break once and it still took over 10 hours. I thought he would be really sore come Sunday morning but he wasn't, he said he works hard on a daily basis at work although he did sleep like a baby!