From the Manufacturer
Model #15252 is recommended for 8" to 10" metalworking lathes. Palmgren's lathe attachment converts your lathe into a mill and allows you to mill slots, grooves, flats, squares, hexagon's, octagons, external and internal dovetails, along with sawing, grinding and drilling at any angle. Attachment will quickly and easily mount on the compound of most lathes and the cutting tool in the lathe's quick chuck. It has 360º graduation for rotary angle adjustments and a graduated feed screw.
Product Description
Lathe/milling Attachments Width: 2-1/2 Jaw Opening: 2-1/2 Throat Depth: 1-1/2 Slot Width: 1-1/4 Type: Lathe Milling Attachments