Review pictures. This is lot of random greenlee / enerpac knockout tools. Some of the tools look new unused and some look used. Their are a lot of 1” cutters and it looks like 1 may be a generic one. This is all I know about these tools. One of the 1/2” cutter has some indents on each side? Not sure if it’s supposed to be that way. One of the 1/2 cutters which looks brand new does not want to screw on the shank. It’s a Greenlee same part number as all the other ones. There are two bearings. 1 large and 1 small. Review pictures. Sold as is. Sizes are 1/2, 3/4, 1, 1-1/4, 1-1/2, 2