Chain Tool - New design allows components to lock into tool body and larger pressure bolt for easier use without dropping tool components - Easily press-fits tight tolerance 50 O-ring chain sideplates to the correct depth for clip or rivet link installation - The new press fit holder plate features a reversible post to switch between clip plate and rivet plate - Redesigned sure-grip handle and laser engraved part number for easier part identification - The redesigned Rivet Flare Pin now features a flare guard to prevent over riveting - Quickly and easily breaks 50 type chain - Flares RK’s special rivet pin hole rivet links - Cannot press-fit or rivet 530PRODR. - Tool is not able to rivet 420/428 type chains without FP428JP & PH428 (sold separately).