WIESEMANN 1893 Tube Spanner Set 10 Pcs - 6-22mm Ideal for Tap / Radiators / Spark Plugs Etc Double tube socket wrench set in the following sizes - 6 x 7 mm 8 x 9 mm 10 x 11 mm 12 x 13 mm 14 x 15 mm 16 x 17 mm 18 x 19 mm 20 x 22 mm Includes rotary pin roll bag All items in the set are made of high-quality Q-30 steel (equivalent to chrome vanadium steel), hardened and in the chrome-plated finish. This material is particularly durable and the surface provides complete corrosion protection. Brand New With Carry Bag Free Postage