The phrase "with both hands" is often used to describe an action where someone is using both of their hands to hold, grip, or manipulate something. However, there are many other synonyms that can be used to convey a similar meaning. For example, "using both mitts," "double fisting," "embracing with both palms," "grasping on two fronts," "clutching bilaterally," and "holding with both digits" are all different ways to express the action of using both hands. Each of these synonyms can help to add variety to your writing and make it sound more interesting and engaging to your readers.