STA042294 Specifications MPN STA042294. Manufacturer Part Number STA042294. TCT Blades Circular Mitre Chop. 1x Stanley Torpedo Level 20cm 3 Vial. The Stanley 0-42-294 Torpedo Level has a plastic ABS body and 3 fixed vials: 1 vertical, 1 horizontal and 1 for setting 45° angles.