Zoom icon Click to expand Tap to zoom Chevron down icon Chevron down icon Tap For Gong Base 6.5mm by PERRIN Sale $29.60 | / SKU 73-8010 1 2 3 4 5 6 7 8 9 10+ Quantity Chevron down icon Quantity Add to cart Spinner icon Notify me when back in stock Email address Email me when available Tap For Gong Base 6.5mm is for tapping cast iron gong bases when installing new chime rod with a 6.5 mm thread.