ESCO HSI wearparts are the overwhelming favourite of sand and gravel produces and recyclers ro its long wear life, consistent fit and excellent performance, especially the swing hammers. ESCO swing hammers are available in 4 alloys 14HN, 18CR, 33F-MC, 35S to best suit the applications. ESCO swing hammers are fit for Eagle, Excel, Kemco, Nordberg, Pioneer, Telsmith, Univeral, and so on.