The chromium-vanadium steel used in the Baum - 2.5 mm Allen Key provides the Allen key with high durability. The 2.5 mm Allen Key has an outer covering that improves the friction properties and prevents the upper layer's chipping. This Allen Key fits into any screw or bolt head with a hexagonal socket size of 2.5mm. This package of Allen Keys contains 100 units. The Allen key provides a very small replacement for a wrench. The Allen key is shaped like an L handle but is much smaller.
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