Spanner sets provide a selection of spanners ranging in size to meet various requirements. Kits offer a selection of different spanners will cover a variety of sizes and styles in order to make sure you have what you need to hand. Spanner sets can be supplied in a variety of formats, such as a box, tray, or a tool wrap, among others, to protect the tools from damage during transit.The number of pieces within a spanner set will vary, and spanner sets can be found to include one or more types of spanner, such as ratchet spanners, ring spanners, open-ended spanners, or combination spanners. Our range includes leading brands such as Bahco, Facom, Gear Wrench, Gedore, Stahlwille, Stanley, Wera & RS PRO.What measurements are used for spanner sets?Imperial SpannersImperial spanners use the AF (across flats) system, where the measurement is taken between two parallel sides of the fastener. An inch spanner will fit an inch fastener.Metric SpannersMetric spanners also use the AF (across flats) system, where the measurement is taken between two parallel sides of the fastener. However, they will use metric measurements, giving a measurement in millimetres (mm) rather than inches.Spanner set applicationsSpanners sets are used in many different industries, but they are most commonly used by:MechanicsElectriciansNetwork EngineersDIY Enthusiasts