The mechanical properties of the AMPCO® D4 Aluminium Bronze are among the highest on the market. This alloy is used in the production of the SAFEWRENCH® range. AMPCO® D4 is the ideal material to produce high quality non-sparking striking wrenches; the energy absorption capability is the highest level of non-sparking materials.
The retaining rings are used in the non-sparking versions of SAFEWRENCH® are made of AMPCO®83 alloy (BeCu). Heat Treatment are needed to reach the perfect mechanical properties:
Both tool and retaining rings have a lifetime warranty. Normal wear is not covered by warranty.