X tools spanner set the x tools spanner set is a workshop quality spanner set manufactured from chrome vanadium and comprises of 8 spanners ranging from 8mm to 16mm the spanners have one open end and one ring end and come complete inside a heavy duty roll mat for safe keeping features included spanners 8mm 9mm 10mm 11mm 12mm 13mm 14mm 15mm 8 piece chrome vanadium buy x tools products from chain reaction cycles the worlds largest online bike store