54mm Reducing Adapter (2″) from 84 Round addons This article also gives some

This article  also gives some handy tips on how to drive posts in when you have hard ground

great for rugged terrain

Which means it is suitable for 50x50x5mm posts

This adapter is suitable for driving posts between 76mm - 82mm diameter

Price is per tube

54mm Reducing Adapter (2″) from 84 Round addons This article also gives someSize This Reducing Adapter has an internal diameter of 54mm round. This Reducer fits inside a 84mm Round Adapter, for driving posts between 40mm 52mm (2"), including Scaffold Poles. The Reducing Adapter slides in and out of the 84mm Round Adapter with rubber O Rings. Compatible with the Classic35 and Classic50 models only. Extra Information What adapter(s) do I need? To get the most effective use from the Post Driver, the Adapter size must be a snug