Multipurpose Chrome Vanadium steel spanners, fully polished with mirror finish. Hardened and tempered for corrosion resistance. The set consists of 20 combination spanners with open ends. 5 offset ring spanners. 10 stubby combination spanners. 5 Double Sized open end spanners. 5 double sized half moon Spanners. 5 double ended 's' shape spanners. Specifications: 10 x Stubby Combination spanners: 6,7,8,9,10,11,12,13,14mm 5 x Double sized obstruction/ring offset spanners: 6x7,8x9,10x11,12x13,14x15mm 20 x Combination Spanner: 6,7,8,9,10,11,12,13,14,15,17,19,20,21,22,24,25,27,30,32mm 5 x Double Sized Open Ended Spanners: 6x7,8x9,10x11,12x13,14x15mm 5 x Double Sized Half Moon Spanners: 10x11,12x13,14x15,16x17,18x19mm 5 x Double Ended 'S' Shaped Spanners: 10x11,12x13,14x15,16x17,18x19mm