EGT TD2522 TUNNEL DRILL RIGS FOR SALE AT MEKTUNNEL 2 x Units Available, Zero hours of use. Currently 440V, 50Hz however electrics can be modified. EGT Class 25 Tunnel Drill Rig Model TD2522: Drilling Applications (Tunnelling):  Bore Holes, Micropiles, Forepoling & Jet Grouting Contact MEKTUNNEL for additional information read more →