Expert 31 piece 12 sq dr metric socket setkey features expert quality chrome vanadium steel hardened tempered and satin chrome plated for corrosion protection sockets have knurled ring for extra grip packed in steel carrying case with laser cut foam insert and display sleeve whats included18 draper expert hi torq 6 point sockets size 8 9 10 11 12 13 14 15 16 17 18 19 21 22 24 27 30 and 32mm6 draper expert hi torq 6 point deep sockets size 10 11 12 13 17 and 19mm2 draper expert hi torq spark plug