[shrug]

Here are the instructions for the D.I.D tool:

https://didchain.com/wp-content/uploads/2020/01/DID-Chain-Tool-Inst_150.pdf

I don't know, man. Failures are pretty expensive too. They cost money and time.

I got mine via Amazon for $90. Ha, my review is on the front page.

See also a few more details on your tool's amazon page.

• (1) Chain Breaker Tool
• (1) Plate Holder
• (3) Pins: 3mm, 4mm, 5mm
• (3) Anvils: 3mm, 4mm, 5mm

This compact 8-piece chain press tool is designed to easily remove chain rivets to shorten, lengthen, and replace 520, 525, 530, and 532 chains on your bike, ATV, or OHV cam.

This motorcycle chain breaker tool provides visibility of the pin for a more precise alignment of the rivet cutter and rivet.

EASY TO USE

Align chain press tool to grounded down rivet head on chain and tighten the push bolt remove the pin and rivet.

Install press plate into push bolt and fit over master link and check that master link is aligned correctly. Tighten push bolt and flare the pin for sturdy hold.