Long, hardened-steel punch forces pin all the way out.
So precise it never harms adjacent links.
The secret is Smith Tools patented clamping cylinder for perfect alignment.
Two models so there is a Chain-A-Part to fit all roller chain series from 420 to 630 chain.
Best buy in roller chain tools in America!.
Packed in a rugged hangable display.
fits Case with instructions Heavy Duty/Shop Quality.
Model B: 420/428/520/525/530 Chain