Acme-Gridley RA-4 and RA-6 4 and 6 Spindle Automatic Bar Machines. Parts Catalogue as Exploded Component Drawings. as Photographs and Engineering Drawings.

Ingar RA-6 and RA-6H Universal Tool and Cutter Grinders. Operator's Hand book with Sectional Drawings of the whole machine and Electrical Schematics.