A chuck for clamping an article has a receiving portion including a receiving bore having a longitudinal axis L, and a radially inwardly facing contoured clamping and receiving inner surface. In one warhead embodiment, a cylinder of solid metal is disposed within a ceramic heat insulator; heaters of thermite-like material are embedded in the metal; and an explosive dispersing charge is disposed around or at one end of the cylinder. The present disclosure also provides an online application system. A flow restriction member 114 between the rotatable inner housing and the outer housing reduces fluid pressure downstream from the flow restriction to less than 40% of the upstream pressure. Each sensor footprint is sealed within a recess or cell beneath the cover.