• Includes 12 pieces: 6x7, 8x9, 10x11, 12x13, 14x15, 16x17, 18x19, 20x22, 21x23, 24x27, 25x28, 30x32 mm • Metric sizes • 12-point Dynamic-Drive™ profile provides longer life for screws and nuts • Chrome plated micro-matte finishing provides high quality surface • High-performance alloy steel • Better accessibility • Optimised legibility and identification with high-clarity imprint • Standards: ISO 1085, ISO 10104 and DIN 838 • Available in black plastic pouch