Freud DHSAR375 Diablo Hole Saw 3/8 Mandrel Quick Change w/Pilot

Theres a MAJOR design flaw in the provided adapter nuts included with the quick change. If youre using the quick change with Freud/Diablo hole saws that are meant for it, in other words the hole saw arbor nut is welded to the hole saw, these are a great tool to have and work great. HOWEVER, if you use the provide adapter nuts on older hole saws, if for any reason you need to reverse the drill (since there are no pins holding the hold saw in place) the adapter nut just simply unscrews leaving your hole saw stuck in place. Additionally, if you use a larger hole saw with the adapter nut, you MUST NOT release the drill trigger once you start drilling your pilot hole because the flywheel motion of the hole saw weight allows the hole saw to unscrew rapidly and fly off the adapter nut if you stop the drill, potentially CREATING A VERY DANGEROUS SITUATION. This flaw SHOULD BE ADDRESSED BY FREUD by somehow adding locking pins to this system.

The fit of the pilot drill in the mandrel allows way too much lateral play.

Very heavy duty.

great tool, makes moving from one hole saw to another with ease at first. how after a few uses it seems to lock up somewhat, making it difficult to actually lock the hole saw onto this. I can still make it work, however with the amount of time I struggle removing the hole saw to use another one I could properly just change the whole thing out faster then trying to get this tool to work like it first did.

If you need to change hole saws often this is a great tool.

Outstanding, works great, even with my old saw parts/blades. Incredible invention. If you have a hole saw, add this to the collection. Will USN Ret.

MUCH CHEAPER THAN THE DIABLO EQUIVALENT, BUT VERY DURABLE AND WELL-ENGINEERED. JUST AS GOOD [OR BETTER, GIVEN THE QUICK-CHANGE ABILITY], THAN THE DIABLO SAW ARBORS.

super easy to use and works very well! Very satisfied!

Well made and good value but only given 3 stars as mandrel adaptors did not fit my UK hole saws.