Designed to remove damaged nuts and bolts. Manufactured from heat treated Chrome Molybdenum steel. Reverse spiral flutes are designed for maximum grip. Suitable for use with 3/8"Sq drive or spanner. Supplied in storage case. Features & Benefits: • Designed to remove damaged nuts and bolts. • Heat treated Chrome Molybdenum steel. • Reverse spiral flutes are designed to provide maximum grip. • Suitable for use with 3/8"Sq drive or spanner. • Contents: 9, 10, 11, 12, 13, 14, 15, 16, 17, 19mm, 7 x 90mm Drift. • Supplied in storage case. • Model No. AK8184 Specifications: Model No AK8184 Brand: Sealey Contents: 9, 10, 11, 12, 13, 14, 15, 16, 17, 19mm, 7 x 90mm Drift Nett Weight: 0.57kg