What is the maximum capacity for a lever type (compression) tubing bender?

The maximum capacity for a lever type (compression) tubing bender is 3/4 inch. This type of bender is designed primarily for bending softer metals like copper, aluminum, and plastic tubing, which are commonly used in plumbing and HVAC applications. The 3/4 inch capacity allows the bender to be appropriately sized for the most typical applications encountered in steamfitting and related trades.

When selecting a bender, it's crucial to consider the material and thickness of the tubing you will be working with. A 3/4 inch capacity is standard for many applications, as it strikes a balance between ease of use and the ability to create tight bends without kinking or damaging the tubing. Larger diameters, such as 1 inch or 1 1/4 inch, would typically require heavy-duty or hydraulic benders rather than a lever type, indicating that they are not within the capability of a standard lever bender.