The link you provided takes me to an Ebay auction for an ink pen (?).
Yes, you should use an Oetiker clamp pliers for installing these clamps. Having said that, there will undoubtedly be some folks out there that have found other ways to circumvent this (small) expense. But for me, I usually ascribe to the motto "the right tool for the job", so I use the Oetiker pliers.
In any event, the proper size Oetiker product you need is 16700007, 304 SS Stepless Ear Clamp, One Ear, Clamp ID Range 9.6 mm (Closed) - 11.3 mm (Open). They are sometimes also listed on sites by "nominal size" which in this case might read "10.4 mm", which is usually just an avg of the open vs closed ID.
I buy mine at McMaster-Carr but they are also available at other outlets. The McMaster-Carr product has the same specs except the band width is 2mm wider at 7mm (9/32") vs 5mm for the clamps sold elsewhere. The price per piece is also much lower at $0.21/clamp at McMaster-Carr (excluding shipping) vs $1.18/clamp at the
Brazilian River bookstore. The only downside to McMaster products is the minimum quantity, which in this case is 25 pieces, but as I have small business fixing motorcycles, I don't mind having inventory. Also, Oetiker clamps are one-use items, so its always good to have spares on hand in case you screw up on an install.
Link to McMaster-Carr item is here
https://www.mcmaster.com/5435K12/
Oetiker tech data here
https://oetiker.com/en/Products/Clamps- ... PG-117_167
I hesitate to send you the
Brazilian River bookstore link because I'm currently boycotting that company due to some derogatory anti-police merchandise that they sell, but given the information provided above the clamps should be easy enough to find if you prefer to patronize that company. Best of luck to you.