Precision made units for producing accurate indexing and dividing quickly and easily. Headstock swivels from 10° below horizontal to 90° vertical. 24 hole direct indexing plates for numbers 2, 3, 4, 6, 8, 12, and 24. 3 additional dividing plate for indexing all numbers from 2 to 50 and most numbers up to 380. 1 : 40 gear ratio. Hardened and ground spindles are threaded for use with chucks. The following accessories are included with every Dividing Head: Headstock, Adjustable Tailstock, Center, Lathe dog, Threaded Backplate for mounting lathe chucks, 3 Dividing Plates. Semi-Universal Type. Headstock MT3. Spindle Thread: 1-1/2" - 8.