Single HEX key.
Made from chrome-vanadium steel (Cr-V), the chrome used guarantees high strength and resistance to corrosion, oxidation and abrasion, while the addition of vanadium increases the properties of the steel used, including resistance to high temperatures and resistance to deformation.
The longer part allows us to tighten more quickly, while the shorter blade allows us to apply more force when tightening.
Visible engraved size marking.