Easily presses on and off master link plates for clip style chainsWorks on most 50 series chainsMaximum master link width 24.8 mmPresses on side plates with roller pins up to 5.25 mm (0.207") diameter.Will not damage master linksHardened steel pins for reliable useLight weight billet aluminum constructionDurable blue anodized finish with laser engraved markingsNot for use in breaking rivet master linksOriginal Motion Pro Design