PT Mi-Ba-III mineThe PT Mi-Ba-III is a large Bakelite cased circular Czechoslovak anti-tank blast mine. It is no longer produced but it is found in Angola, Kuwait, Mozambique, and Namibia. A Bulgarian copy of the mine, the PMT-BA-III exists.Specifications Diameter: 330 mm Height: 110 mm Weight: 10.8 kg Explosive content: 8.0 kg of TNT Activation force: over 2 kN Fuze: RO-2