Allpipe wooden mandrels can be manufactured to any required size between 291 and 340mm.
Please note: Wooden mandrels and test balls are manufactured 10% smaller than the indicated measurement
Allpipe testing balls and wooden mandrels are made from hardwood and are available with or without galvanised eye bolts.
If you require a larger size of wooden mandrel, see the Related Products section below. Most sizes are available, and special sizes can also be manufactured to suit longer lengths and unusual pipe diameters.