E00791 Pivotable Stainless Steel Pivotable Connector for 1/2" Bar w/ Set Screws for Square Tube. External diameter 7/8". This INOX Stainless Steel Connector has a pivotable connector and features a 0.01" hole
REMS 113241 - RAS Cu-INOX 3-28 S Mini Tube Cutter (1/8"-1-1/8") - REMS Tools USA (Teal Corporation)
handrail on glass balustrades - Severals diameters and fintions - SADEV