Always note the grade and size of the bar you’re bending, checking against the equipment you’re using to ensure it works. Check with your project engineer to ensure your bends meet the minimal internal bend diameter. If you don’t know what this is for your project, wait until you do. Never re-bend rebar. Once you’ve bent it, it’s finished. Continually working it will significantly lower its strength. [1] X Research source
Cost from $200-500. Can only handle lower-grade steel and sizes.
Cost from $3,000-5,000. Can handle any grade steel, or any size.
Cut rebar can be jagged. Any exposed ends should be covered by OSHA-approved rebar caps. [3] X Research source
The type of rebar needed is not purely up to choice – there are important structural codes that you need to follow when constructing.
Make sure your vice is well-anchored to your work bench. Your bend should be right at the end of the vise jaws. [6] X Research source
For precise bends, you’ll likely need a mold. You can cut and carve wood blocks, for example, and bend them the rebar around that. For even more precise bends or thicker rebar, you will need to move on to professional equipment, however. These machines come with dies that you bend the bar on top of to get the perfect angle.