gait
Explorer
of course there's always a hiccough.
In this neck of the woods "tube" is "pipe" at the local steel merchant. Its dimensioned as NB (nominal bore). So 50mm NB pipe is OD 60.3mm and comes in various wall thicknesses. Next size down is 40mm NB which is 48.3mm OD. Welcome to incomplete metrification.
RHS really is metric and telescoping with reasonable clearance is relatively easy.
In this neck of the woods "tube" is "pipe" at the local steel merchant. Its dimensioned as NB (nominal bore). So 50mm NB pipe is OD 60.3mm and comes in various wall thicknesses. Next size down is 40mm NB which is 48.3mm OD. Welcome to incomplete metrification.
RHS really is metric and telescoping with reasonable clearance is relatively easy.
