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NUMERICAL INDEX TF No. 25-335 25-336 25-337 25-338 25-339 25-340 25-341 25-342 25-343 AGO 10118B The Engine Lathe—Cutting a Taper With the Componnd Rest and With the Taper Attachment Operations when turning sharp taper on level gear blank with compound rest and slight taper on shaft with taper at- tachment (10 min—1941—Film Reference—From US Office of Education Film No. 8). The Engine Lathe—Drilling, Boring, and Reaming Work Held in Chuck Operations when cutting tapered hole in solid forged steel gear blank—Operations in centering piece in chuck, rough fac- ing, drilling, tapered boring, and reaming (10 min—1942—Film Reference—From US Office of Education Film No. 9). The Engine Lathe—Cutting an External National Fine Thread Various shapes and uses of national fine thread—Procedures for cutting thread on lathe (12 min—1942—Film Reference— From US Office of Education Film No. 10). The Milling Machine Parts of earliest standard plain milling machine—Capabil- ities, operation, and work accomplished on it (7 min—1942— Film Reference—From US Office of Education Film No. 11). The Milling Machine — Cutting Keyways Setting up shaft on table of milling machine for cutting key- way at each end—Selection of cutter—Determination of speed and feed—Setting machine for depth and length of cut (15 min—1942—Film Reference—From US Office of Education Film No. 12). The Milling Machine—Straddle and Surface Milling to Close Tolerances Methods and procedure followed when rough milling a solid bar of stock—Finish milling of same piece to given shape and size (27 min—1942—Film Reference—From US Office of Ed- ucation Film No. 13). The Milling Machine—Straddle Milling Procedures followed when straddle milling a pair of connect- ing rods held in a fixture—Function of fixtures in production work illustrated (17 min—1942—Film Reference—From US Office of Education Film No. 14). The Milling Machine—Plain Indexing and Cutting a spur Gear Set-up of milling machine—Use of dividing licad—Cut of 8- pitch spur gear with 3G teeth (25 min—1942—Film Reference —From US Office of Education Film No. 15). The Vertical Boring Mill—Rough Facing, Turning, and Drilling on a Vertical Turret Lathe Operations used in rough facing, turning, and drilling alumi- num casting held in chuck jaws of vertical turret lathe (31 min—1942—Film Reference-From US Office of Education Film No. IG). 357