Replace Tool Holder on Bosch MX25E Oscillating Multi Tool

Can anybody provide info on replacing the tool holder on a Bosch MX25E oscillating multi tool. If the name is misleading the tool holder is the part that the blade is secured to.
I’ve seen some info where people have used a gear puller or grinder to cut the part off and then heated the new part to expand it and then pressed it on. Are there better ways to do this?