Construction box wrench offset non sparking ReferenceAlloySize (S)Length (L)005006 BeCu 8 mm 140 mmConstruction box wrench offset Beryllium copper 8 mm 8 mm 140 mm 019806 AlBr 8 mm 140 mmConstruction box wrench offset Aluminium bronze 8 mm 8 mm 140 mm 005010 BeCu 10 mm 150 mmConstruction box wrench offset Beryllium copper 10 mm 10 mm 150 mm 019810 AlBr 10 mm 150 mmConstruction box wrench offset Aluminium bronze 10 mm 10 mm 150 mm 005011 BeCu 11 mm 160 mmConstruction box wrench offset Beryllium copper 11 mm 11 mm 160 mm 019811 AlBr 11 mm 160 mmConstruction box wrench offset Aluminium bronze 11 mm 11 mm 160 mm