【Hand-Cranked Three-Roll Drive】 This manual metal pipe bender features a three-roll drive design with synchronized feeding via a hand-crank mechanism. It can bend pipes with a minimum diameter of 2.75 inches, delivering high bending precision with no residual straight sections. It can process round bars up to 1/2 inch in diameter and flat bars up to 1 inch by 1/4 inch, making it ideal for metalworking, repair shops, and DIY projects. 【Stepless Bending Radius Adjustment via Screw】 By manually adjusting the screw, you can precisely control the roller gap to achieve stepless fine-tuning of the bending radius. Whether working with round or flat steel, it flexibly adapts to different curvature requirements. 【Extended Handle for Effortless Operation】 Equipped with an extended handle featuring a lever-style design that reduces effort, allowing a single person to easily bend metal profiles and significantly reducing physical strain. Operation is simple and intuitive. 【Stable and Durable Forming】 The transmission mechanism uses high-hardness, wear-resistant gears for efficient and stable power transfer, minimizing the risk of deformation or damage. Three sets of drive rollers synchronously guide the metal profile, ensuring uniform feeding, stable transmission, and improved forming accuracy. 【Portable Design】 This manual metal bending machine is specifically designed to bend metal profiles into arcs or rings. It requires no air or power source and can be used anytime, anywhere. It can process both round and flat bars, with a minimum bending radius of 2.75 inches, making it an ideal portable tool for metalworking shops, repair shops, and personal DIY projects., Manufacturer: Maisutseb