The IDEAL Twist-a-Nut 21"-1 Ratcheting Screwdriver is constructed with a heavy-duty chrome vanadium steel shaft with enough strength to withstand a lifetime of professional use. This versatile tool boasts a premium ratchet mechanism that can handle up to 225 lb of torque without failure, thanks to its pro-quality, 28-tooth double-action ratchet with all-metal construction. The ergonomic, slip-free textured grip handle ensures excellent torque and comfort, reducing hand fatigue. A built-in patented wire connector wrench in the handle enables easy twisting of connectors, even in tight spots, while the Accu-Loop wire-looping holes make perfect loops every time. This driver accepts Twist-a-Nut replacement bits and includes 5/16", 1/4" and 3/16" slotted, 1, 2, and 3 Phillips, 1 and 2 square, 15, 20, 25, and 30 star, 3/32", 1/8", 3/16", and 5/32" hex precision tips, and 1/4", 5/16", and 7/16" nut drivers, making it an essential addition to any toolkit.