Optical Center Punch Self Holding Punch

[jjr2001]

The original design works great with the Bausch & Lomb 5x eye loop. I had ordered two imports for about 1.00 each. they just came in and the focal length is different. I made up the pvc pipe adapter using a short length of 3/4 sch 40 pipe and one elbow. Cut off one socket, glued it up and just had to remove a very small amount of pvc for a sliding fit into the original optical punch block.

The optical quality of the Import is no where near the Bausch lens. It works but it is not as crisp.

Cheers, JR