The Draper 30 Piece Long Hexagon Allen Key Set provides comprehensive coverage for both metric and imperial fasteners, making it an essential addition to any toolbox. This complete set includes 15 metric keys ranging from 0.7mm to 10mm and 15 imperial keys from 0.028" to 3/8", ensuring you have the right size for virtually any hex socket application. Manufactured from chrome vanadium steel that's been hardened and tempered, these allen keys deliver the strength and durability required for professional use. The extended arm design is particularly valuable when working in confined spaces or reaching recessed fasteners, with lengths varying from 65mm on the smallest 0.7mm key up to 170mm on the 10mm size. This extra reach allows you to access awkward positions without requiring additional extension tools. Ideal for mechanics, engineers, and maintenance professionals who work with machinery, equipment assembly, or bicycle repairs, this dual-measurement set eliminates the need to maintain separate metric and imperial key collections. The included plastic storage case keeps all 30 keys organised and protected, making it easy to transport between job sites whilst ensuring you can quickly locate the size you need. Features and Benefits: • Chrome vanadium steel construction, hardened and tempered for long-lasting durability • Extended arm lengths from 65mm to 170mm for improved access in confined spaces • Comprehensive 30-piece set covers both metric and imperial measurements • Supplied in plastic storage case for organisation and portability Contents: 15 x Metric keys: 0.7, 0.9, 1.3, 1.5, 2.0, 2.5, 3.0, 4.0, 4.5, 5.0, 5.5, 6.0, 7.0, 8.0, 10.0mm 15 x Imperial keys: 0.028, 0.035, 0.050, 1/16, 5/64, 3/32, 7/64, 1/8, 9/64, 5/32, 3/16, 7/32, 1/4, 5/16, 3/8"