The SIMPLEX superplastic insert (series 3207) with its hardness of approx. 65 Shore D is a medium hard insert. This white plastic insert is composed of extruded and extremely homogeneous material. Compared to injection moulded plastic inserts, it is therefore considerably more wear-resistant and durable. This Halder top seller is available in sizes ranging from D30mm to D140mm (for the forestry tools is used the D50mm for the SIMPLEX splitting axe and the D60 for the SIMPLEX splitting maul).