PEX Tools & Rings
PEX Crimp Tool is often referred to as PEX Crimping Tool or PEX Crimper. All of them have the same meaning and are used together with Copper Crimp Rings of appropriate sizes.
PEX Clamp Tool is also known as a PEX Clamping Tool or a PEX Cinch Tool, with all of the names referring to the same ratchet-type tool that handles clamps sizes 3/8" through 1". A clamp tool is always used in conjunction with Stainless Steel PEX Clamps (Cinch Clamps).
Quick and Easy Introduction to PEX Tools