What this tool does Internal pipe bending tool that inserts into the pipe to create smooth, accurate curves in tight spaces. Designed for installations and repairs where controlled bending is required without kinking or deformation. Key benefits (why you need it) Faster, cleaner bends: produces consistent, smooth curves so pipe runs fit where they should on the first try. Reduced material damage: supports the pipe from the inside to prevent kinks and flattening during bending. Faster workflow: color-coded sizes let you identify the correct mandrel quickly and move between tasks without delay. Durable for repeated use: made from PE plastic to resist wear during regular field use. Important attributes Sizes included: 1/4 (red), 3/8 (green), 1/2 (yellow), and 5/8 () — covers common small-diameter pipe and conduit sizes. Material: PE plastic for wear resistance and reliable performance under repeated bending. Function: internal bending inserts that support the pipe while forming precise curves in confined areas. Typical applications Electrical conduit routing: make accurate bends inside conduit runs to route wiring through walls or around obstacles. Plumbing installations and repairs: form smooth bends in tight cabinet or under-sink spaces for neat, leak-free pipe runs. General pipework in tight spaces: useful wherever internal support is needed to shape small-diameter pipes without crushing. Practical advantages Simple size selection via color coding speeds setup and reduces mistakes. Compact inserts fit into narrow sections where external bending tools cannot operate. PE plastic construction balances flexibility and durability so inserts hold shape over repeated jobs. Use these internal bending inserts whenever precise, repeatable bends are required for 1/4, 3/8, 1/2, and 5/8 pipes or conduits to improve installation speed and final fit.