Ratchet ring spanners in metric sizes. Manufactured from chrome vanadium steel for strength and durability. Chrome plated finish for corrosion resistance. All of the ratchets are 12 sided apart from the 1/4" which is 6 sided. Push button reversible ratchets for use in a forward or reverse motion. Ratchet spanner so ideal for work in tight / awkward areas. Includes sizes; Ratchet spanner 6mm x 8mm total length 120mm Ratchet spanner 10mm x 12mm total length 140mm Ratchet spanner 11mm x 13mm total length 170mm Ratchet spanner 14mm x 17mm total length 200mm Ratchet spanner 19mm x 21mm total length 225mm