[Clamping capacity: 21 cm (UEN5200)]

https://catalog.amazon.com/abis/product/DisplayEditProduct?marketplaceID=ATVPDKIKX0DER&ref=xx_myiedit_cont_myifba&sku=UEN5200&asin=B07GInserta Clamps - T-Handle P/N:UDN5150 / UEN5200 PRODUCT DESC. RIPTION: Space The Inserta clamps into the diameter 5/8" holes on the BuildPro tabletop, riser blocks, or economy stops and clamp squares for quick, easy pinching. Clamp in vertical or horizontal position at any height.