... grouting pile hole, jet-grouting hole, large dia.pile with drilling BG-60 casing extractor is a special purpose equipment used ... hole, jet-grouting hole, large dia.pile with drilling smaller hole etc., and drilling with case. Technical Specifications Casing dia. (mm) 42 ... ×813)Weight (Kg)280/(250)Total weight (Kg)600/(570) Drilling rig BG60 casing extractor