10 Piece HEX Key Set, Allen Key Wrench Tool Metric 1.5mm to 10mm, Alan Allan
Hex keys, also known as Allen keys, are tools that are used to drive bolts and screws with a hexagonal socket. 1.5mm, 2mm, 2.5mm, 3mm, 4mm, 5mm, 5.5mm, 6mm, 8mm & 10mm. from 1.5mm to 10mm.