Churchill DG100 Drill Grinder (made to the original design by Herbert Hunt ): Instruction Manual, and Parts Manual as Sectional Drawings. The "Hunt" was, at one time, a very well known machine and also sold badged as "Herbert", "Jones & Shipman", "Churchill", "Teston" and "Dormer". It was made for many years in several forms and sizes - but all operated in the same way.