Using the DeWalt DWA54120 rebar cutter is easy. First, if you need to drill in hammer mode, just take advantage of its durable head design. When you want to switch between the carbide bit and the rebar cutter, the SDS+ shank makes it a quick and simple process. When using it to cut rebar, the optimized carbide tip will do the job smoothly. As for maintenance, after each use, make sure to clean the cutter to keep it in good condition. Also, store it in a dry place to prevent rusting. And always handle it with care to avoid any damage to the tip or the shank.