Expert quality 7 piece vde screwdriver set each individual screwdriver is tested to ensure it fulfils the en 60900 requirements the en 60900 requirements compel all tools to be tested to 10k v making them suitable for working on live ac circuits of up to 1k v and dc circuits of up to 15k v the blades on the screwdrivers are manufactured from svcm alloy steel hardened tempered and chemically blackened with a deep set blade sheath providing total safety and peace of mind all blades are fitted to a