Hammer Handle (Single)FREE SHIPPING Grow those biceps, triceps, and more with our aggressive knurled Hammer Handles. Featuring a 1. 25 thick handle and our unique aggressive knurl, take your grips to the next level. These handles feature a smooth, stylish black knob and a USA made eyebolt for a strong hold and ability to attach to any cable machine. Want more protection? Upgrade to a Cerakote of your color and be the envy of the gym (even if its in your own home). Sold