Ihave been using broadheads the have detachable blades for years.
They are always working lose...losing blades.[:@]
What is a good fixed blade broadhead?

I've used G5 Montecs for a year now and I love them, very sharp.

I've used Muzzy 3-Blade for years with great results, but if I was to change to something new I would also go with G5 Montec's

i use slick tricks . they fly just like my field points and they interlocking blades never come lose . you have to remove the head to get the blades out

I like the Magnus Snuffers SS. Fly great and you can sharpen then yourself.

g5 montecs ,
fly great and are very ,very strong

Give the Rocky Mountain Blitz or NAP Nightmare a try. The blades are held in place by screws. I'm getting very good flight from the Nightmare and those offset blades sure do tear up a target.

I use slick tricks and love them. They fly exactly like my feild tips.

magnus buzzcut stingers is what i usde

It might help us to know what you are using now that you are having trouble with coming loose. This shouldn't be happening if they are on tight, or if they use an O ring. Some designs hold the blades better than other though.

Paul