The Sandvik / Tamrock 817 742 59 Piston seal is a high-quality aftermarket replacement designed and fully compatible with dd320 40, dd310 40, commando 300, axera 6, axera d07 260 Underground Drill Rig pantera 1500, pantera 900, pantera 1100 Surface Drill Rig Models. This part ensures optimal performance and durability, making it an excellent choice for maintaining your mining equipment.