Die head
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A die head is a threading die that is used in the high volume production of threaded fasteners.
Die Head
Die Head with various chasers
Die Head for Thread Rolling
Automatic lathe
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In metalworking and woodworking, an automatic lathe is a lathe with an automatically controlled cutting process. Automatic lathes were first developed in the 1870s and were mechanically controlled. Fr
Fay automatic lathe, 1921.
Brown & Sharpe Single Spindle screw machine. Model #2 Square Base, four-slide machine. 11⁄2 cap or 13⁄4 Air Feed.
Brown & Sharpe No. 1 wire feed screw machine. B&S persisted in calling manually operated turret lathes "screw machines" long after most machinists were reserving that term to refer specifically to cam-op automatics.
Close up view of a Brown & Sharpe Single Spindle screw machine. Notice the six station turret, the front and rear slides, and the two vertical slides. Also notice the black shaft just over the turret for use of swing stop.