Professional bowl press and compound head 1, 1 1/8 inch, 1 1/4 inch, and 1.5 inch and some central compound bearings. 
Very fast thanks to bayonet closure. 
530-2 adapter kit included (graduated adjustment of 25.7 mm, 29.7 mm and 32.8 mm). 
Padded handles for comfortable working. 
Maximum working length 315 mm.