Wetzel Horizontal Boring Machines Models B and Models Q. Comprehensive Instruction Book with Sectional Drawings.
Wetzel
Manuals and Catalogues
Wetzel Boring Machines "Working Instructions, Special Attachments, Tools, Work Holders, Speed and Feed Charts" dated 1928 with specifications and pictures of the various models. This is likely to be the only technical documentation issued for these older Wetzel borers.