Collapsible taps have interchangeable tap heads and a common body, and will tap virtually any thread form with the appropriate chaser. Styles include: Model ALTs for straight-thread tapping, Model LLs ...
Includes catalogs issued by: Farrel-Birmingham Company, Hilles & Jones Company, Hilles & Jones Works, Ingle Machine Works, William Sellers & Co., Modern Tool Works, Betts Machine Works, Betts Machine ...