[New Version] How to fix the broken teeth of Sinabroks pricking irons!

Here is the new version for replacing the broken teeth of Sinabroks pricking irons.
Please check this clip video and feel free to let me know if you have any inquiries about the tools.
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[@1arpa]

What is the disadvantage of having a screw? Why is the paste option used? This caused phones with non-replaceable batteries to take over the entire market after the iPhone phones were released. Is gluing a good enough option to make it worth the fact that its repairability is so difficult?

[@V3leathercraft]

Jig not required?