Milwaukee 49-56-7250 - Large Thread Quick Change Hole Saw Arbor

from John R

I agree with other commenters, it should not be necessary to remove the smaller set screw. This screw holds small ball bearing and spring that make the quick-disconnect feature work. Because of inadequate instructions with point-of-sale packaging, I too, took out the smaller set screw (larger set...

from T_Soup

OPERATION AND CONSTRUCTION A hole saw is screwed onto 5/18-18 threads on the end of the arbor. A 1/4" pilot bit in the end of the arbor guides the drill. The pilot bit depth is adjustable for different length saws and is held in position by a 1/4-28 by 3/16" long set screw. It uses a 1/8" A...

from Alan

Poor explanation. I spent time trying to unscrew the set screw until I found out that the set screw must be left alone. I am glad I found out online before I bought an allen wrench to remove the set screw and ruin the tool. It is a great tool once I learned how to use it.

from Stokie

I know it's not that intuitive, but to use this you need to pull the collar to expose the shank where your hole blade will fit. Once you screw it on, then push the collar back to lock the blade in place. Took all of 1 minute to figure this out and there's no need to remove the allen screw. Goo...

from abemares

It seems like I'm having the same issue as everyone else. Does anyone have pics or instructions on how to put or where does the small ball bearing and spring go to? Thanks in advance. FYI: I'm going to use it on fiber glass, hope that's ok!