All anabolic steroids can be used for cutting OR bulking. You will find most women who use AAS to 'bulk' will actually use gear that most guys would consider a 'cutting' AAS. The main difference is in androgenic side effects and absolute mass gains. You can gain more LBM with a highly androgenic AAS, but the side effects such as fluid retention and aromatase conversion are undesirable when getting close to a competition. However I know a very successful competitor who uses nothing but Sust250 and Dbol precompetition so it's all good.