Drilling and tapping cast steel

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Date
1941
Summary
Technique of drilling and tapping blind holes in cast steel on a radial drill.  A drill jig with loose bushings is used for locating the holes. Setting up the work on the table of the machine, setting the jig on the piece to the layout lines. Calculating the size of the tap drill and the method used when setting the machine to drill a number of holes to the same depth. A wizard drill chuck is used in the drilling operation, and a standard friction chuck for holding the tap.  The action of a tap in a hole is shown in animation and the reason why a tap binds in the hole and must be reversed frequently when tapping in tough metals.
Publishers
Indiana University Audio-Visual Center; U.S. Office of Education
Genres
Educational; Instructional; Training
Subject
Drill presses ; Steel, Cast
Collection
IUL Moving Image Archive
Unit
IUL Moving Image Archive
Language
English
Rights Statement
No Copyright - United States
Physical Description
1 Film (0:18:03); 16mm
Notes
Gift to the IUB Libraries from Instructional Support Services. 
Copyright Date: 1941
Other Identifiers
IULMIA Film Database: 40000003227388; Other: GR00439693; MDPI Barcode: 40000003227388

Access Restrictions

This item is accessible by: the public.