I suspect that he actually means "Diagonal Cutters" (or "Diagonal Pliers") such as https://www.totaltools.com.au/hand-tools/pliers/diagonal-pliersAdd good pliers and side cutters.
(Two sizes [small and large] should be provided.)
"Side Cutting" pliers are actually "Bull Nosed" pliers
(such as https://eu-browse.startpage.com/av/anon-image?piurl=https://assets.cdn.thewebconsole.com/S3WEB7235/product-item/60f6207113f25.jpg&sp=1675923298T624f57d138c5625e5f9289148fcea25069ffccb1b055d63fa94f9e5ed20eb7ec )
and you will notice that these "Side Cutting" (Bull Nosed) pliers have a "notch" on each side, so that, if a wire is inserted in the aligned notches when the pliers are "open", it will be cut when the pliers are "closed".