Even though these three tools do the same job, they are operated differently. The main difference is that the standard tool tensions when a lever is turned on a screw, while a Ratchet and Easy tools uses a ratchet mechanism, saving space. They are used to tension and cut clamps formed with bands and buckles. STANDARD: Our Standard Tools tensions and cuts stainless steel bands from 1/4″ (6.35 mm) to 3/4″ (19.05 mm) wide. This tool provides a tension of up to 2400 lbs and cuts the end of the band when the object is already secured. Lightweight (4.3 lbs) and easy to carry, it is indicated to be used in applications such as: mooring of concrete pumps, transformer installation, railway sleeper bracing, packaging, traffic sign fixing, cable fastening and for any other necessary application. EASY: Used on bands from 1/4″ (6.35 mm) to 3/4″ (19.05 mm) wide. The Easy tool is a compact and lightweight ratchet action tool with a built-in cutter. The advantages of this tool over the Standard and the Ratchet ones is that it is smaller, which means it can be used in compact areas, and lighter, which makes it more portable. The easy tool can be used with one hand, which provides a fast application. RATCHET: This tool is used on bands from 1/4 “(6.35 mm) to 3/4” (19.05 mm) wide. The Ratchet tool is a portable, high quality tool that is easy and quick to install. Indicated to be used in applications such as: assembly of signs, fixing cables and wires, insulation, palletizing and for any other necessary application.