The Hilka 32 piece combination spanners are fully polished with chrome vanadium steel making them very strong and durable. They are heat treated as well giving it extra strength and also precision machined, all with 12 point pro drive ring ends. Perfect for your everyday tasks whether it be at home or at work. Specifications Heat treated Chrome vanadium Precision machined Colour: Silver Steel Weight: 2.5kg What's Included 10 x metric sizes (6, 7, 8, 9, 10, 12, 13, 15, 17, 19mm) 10 x inch sizes (1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4") 6 x stubby metric sizes (10, 11, 12, 13, 14, 15mm) 6 x inch sizes (5/16, 3/8, 7/16, 1/2, 9/16, 5/8")