Material Type: Chrome Vanadium Steel
Hex Key Size: 1.5mm, 2mm, 2.5mm, 3mm ,4mm, 5mm, 5.5mm, 6mm, 8mm, 10mm
Heat treated for longer life
1 Year Manufacturer Warranty on Manufacturing Defects
Included Components: 10-Piece Metric Hex Key Ring Set
As days go by, all your devices will tend to have loose bits, but screwing them back into place and tightly becomes difficult because of the hexagonal heads that the screws have. Normal screwdrivers will not work in such situations. You will be stuck with loose bits, if you do not get yourself this home improvement product!