There are many ways to cut thick rose branches. One of the best methods is by using a pruning saw. This tool allows you to quickly and easily cut through the wood with minimal effort. Start by cutting off any dead or diseased branches that may be on your rose bushes. Once those have been removed, use the pruning saw to cut the thicker branches down to size. Remember to make clean cuts so that your roses can heal well after being pruned. You should also shorten some of the longer canes so that they don't block access to other parts of your rose bushes as they grow back in. If you want to keep your roses looking healthy and beautiful, it's essential that you trim them frequently throughout the year!