Questions and Answers for Milwaukee 3/8 in. Quick Change Large Hole Saw Arbor W/ Pilot Drill Bit

A:  Hi Doug! Our 3/8 in. Quick Change Large Hole Saw Arbor W/ Pilot Drill Bit (49-56-7250) is intended for 3/8 in. and larger drill chucks only. There is not an adapter.

A:  You can call the Milwaukee Rep. at your local Home Depot.

A:  Hi there! Please contact our service team at 1-800-SAWDUST if you have any concerns about your purchase.

A:  I'm back the next day to answer my own question: turns out that if you lower the arbor mechanism, it reveals a hex stop collar (or whatever it's called). Put the bit back in, then tighten the bolt with a hex wrench (SAE, I don't recall the size). I figured this out on my own literally as I was on hold calling Milwaukee customer support.

A:  Take it back to where you bought it, should be a Milwaukee Rep. who will either replace it or tell you what you need to do

A:  There is an allen wrench set screw on the body of the arbor that secures the bit that can be tightened to resolve your problem.

A:  @justgrier, any tips to get enough leverage? I have the correct allen wrench, but screw won't budge for me.

A:  if your arbor is the same as mine, use a 4mm allen wrench, turn counter clockwise, and the set screw should come out. that will release the pilot bit.

A:  I'm not sure why the set screw isn't coming out, try inserting your screwdriver into it and give it a slightly harder than usual tap. If that doesn't work, return it to where you purchased it

A:  It takes an Allen wrench to loosen bit. It's a set screw just below the threads Its definitely tight but thats how you want it so it holds bit well.

A:  Take it to the store. I don’t know how long the warranty is but I do know that The Home Depot is good about returns.

A:  I'm not sure about the warranty. What I do is take my Milwaukee tools to the rep at the store to see if there is anything he/she came do for me. But usually with bits, drill attachments, etc They usually won't cover it unless its brand new.

A:  As long as the bit lines up to the holding posts on the pilot drill bit you should do fine. You can do a check fit in the store with the Hardware isle personnel.

A:  Yes, I use it with a 6" for can lights.

A:  Yes, I use it on my 5" and 6"

A:  yes

A:  no, this will not fit in a 1/4 hex

A:  Yes, and it will fit in a 3/8 or 1/2" chuck

A:  If this is the hole saw I think it is, then I don't think it will fit. The center drill would have to be 1/4" and have the "groove" in the shank.

A:  No it will not,this chuck is bigger.

A:  Nope. You need a 1/4" quick change shank

A:  Yes

A:  I have never used a hole saw in an impact driver. Usually, for boring holes in masonry, you need a diamond device. It's moot anyway. A 3/8" hex arbor will not fit in a 1/4" chuck.

A:  No it won’t work for the 1/4 drive.

A:  yes

A:  Yes it will but I'm not sure if the cutter will work it being an inpact driver.0j

A:  Mine has a 1/4" bit.

A:  1/4"

A:  i used in 2 inch or 3 inch

A:  The 1 3/8" arbor comes with a 1/4" drill bit.

A:  1/4 inch

A:  See the Milwaukee rep.

A:  I've never heard of a 7/16" chuck, but then I don't know everything. Usually the progression of chucks is 1/4", 3/8", 1/2". The 3/8" will fit in a 1/2" but it may be too slow; as the chuck sizes get larger, the speed get slower.

A:  You need to purchase separate arbors for each size.

A:  Yes.

A:  This will fit most any hole saw 1-1/4" in diameter or larger.

A:  Good question, Yes . I used with a 2" Carbide saw.

A:  Possibly. There are 2 styles of arbors. Check the style you need with the hole saw itself.

A:  Yes. This is the arbor and pilot bit intended for a 2-3/4" "Hole Dozer" Bi-Metal Hole Saw.

A:  The pilot bit that comes with the 49-56-7250 arbor is designed for wood, plastic and metal. For materials like cement board, tile, fiberglass, brick and block use carbide tipped pilot bit model 49-56-8005.

A:  No. It is designed for wood, plastic, and metal. You would want a diamond saw to use on concrete. Unless you were drilling concrete board but with limited use - wouldn't last that long with very many holes.

A:  yes

A:  no, it will only cut wood, not for metal not for concrete

A:  This arbor can be used with some of the carbide-tooth hole saws that are designed for that application, but you would need a carbide-tipped pilot bit.