Wera Hex-Plus Ball End Keys are made from stainless steel, this will prevent corrosion to stainless fasteners and components through cross contamination of metals. They are also ideal for all normal applications. They have undergone the Wera vacuum ice-hardening process, this gives the tool the required toughness and wear resistance for heavy-duty industrial applications. Hex-Plus® profiles are machined for a precise fit and allow 20% more torque to be delivered, dramatically reducing rounding out in the screw heads. Made from round bar, the key diameters are bigger than conventional keys and are more comfortable during use. Developed to meet the needs from the ever increasing use of stainless steel in sport equipment, architecture, buildings, interior design and fittings as well as classic cars and motorbikes. Supplied in a wear-resistant clip case that holds the keys firmly, but allows easy tool selection. Sizes: 1.5, 2, 2.5, 3, 4, 5, 6, 8 and 10mm.