Designed to extract specimens from almost every type of sampling tube and mould used in solid engineering laboratory or in the field. It can be mounted vertically or horizontally as desired. It has an unique feature that three 38mm dia sample. Comprises of a frame designed for screw jack operation, one each of the adaptors for 38mm, 75mm, 100mm,150mm dia meter specimens and a stand to obtain simultaneously three 38mm diameter samples from one100mm diameter sample. The adaptor plate which slides along the slotted support can be claimed at any desired position by means of locking nuts. Besides this, the tube or mould can be held in position by raising the tube guides and held in position with locking screws. The lead screw movement can be stopped at any predetermined position by tightening the lead screw collar.Plunger adaptor for 200mm dia samples. Adaptor plate with 200mm dia hole and device to extract b number 38mm dia samples.