8 Piece Metric Offset Box Wrench Set Chrome vanadium steel construction Chrome vanadium steel construction Drop forged 12-point box end Sizes: 6 x 7mm, 8 x 9mm, 10 x 11mm, 12 x 13mm, 14 x 15mm, 16 x 17mm, 18 x 19mm, 20 x 22mm