uxcell Router Collet Driver Adapter Set Convert 8mm/12mm/12.7mm to 6mm 8mm/9.5mm/12.5mm to 6.35mm 10mm/12mm to 8mm 12mm to 10mm for CNC Engraving Bit Machine - - Amazon.com
Powerslide - Fothon 6mm Spacer Adapter (4 pcs.)
Titanium Polespear Adapter W / Wrench Slot - 6mm Female to 8mm Male - – drophog.com
Adapter - 6mm Female to 8mm Male - F6-M8 - (Adaptor) – drophog.com
uxcell 5x Air Pneumatic Tee Adapters 8mm to 6mm One Touch Fittings Connectors: Industrial Air Cylinder Accessories: Amazon.com: Tools & Home Improvement