Show Uie of mipitocW" A whlpstock Is a tool which Is lowered on top of a string of lost drilling tools when It Is desired to drill by them. The beveled face of . the whlpstock causes the working tools to glance off to one side of the detached string. A whlpstock Is also used as a means of straig'ft-enlng straig'ft-enlng a hole which has deviated from the vertical. The expression "arranging a whlpstock" means that the drilling tools are lost and arrangements ar-rangements are being made to drill past them with the aid of a whip- " stock. |