This additional post holder is available which can be fitted to the Portek Petrol Post Driver as an alternative to the standard round holder. This post holder can be used for posts of 4″ square, 4×3″ and 3″ square in size.
It can be used without the bolts for 4″ posts. For smaller posts simply insert the reducing bolts through the bottom of the post holder casing, you can either use 2 bolts to allow a 4×3″ post or 4 bolts to allow a 3″ square post to be driven.
*Petrol post driver not included.