Af Imperial Ratchet Ring Spanners 8pc Set Imperial / AF Flexi Ratchet Spanner Set Fits unf / unc threads Manufactured from chrome vanadium steel for strength and durability 72 tooth ratchets so works in 5 degree increments ideal for working in confined spaces. Flexible through 180 degrees. Combination spanner set so one end open and one end closed. AF / Imperial Spanners SET INCLUDES THE FOLLOWING SIZES 1 x spanner 5/16" (total length - 145mm 1 x spanner 3/8" (total length - 165mm) 1 x spanner 7/16" (total length - 170mm) 1 x spanner 1/2" (total length - 190mm) 1 x spanner 9/16" (total length - 203mm) 1 x spanner 5/8" (total length - 206mm) 1 x spanner 11/16" (total length - 225mm) 1 x spanner 3/4" (total length - 255mm) Vat Receipt Included