Du-Bro makes a set of tubing benders for small tubing 1/8" and 5/32" that work pretty good...You cant bend hard tubing, you need to anneal it first...I have the spring set too and I use them on the larger tubing but I dont find much use for them building my planes...The Du-Bro tool number is 785(A) and 786(B) They are sort of like pliers that the tubing fits into.. I really like them for fuel tubing ..They have a video demo on line , that might be worth a look