I got a chance to play with one of these M14 Doctor Bolt Assembly tools today. What a wonderful piece of kit. First impressions really count and this unit is awesome. Total confidence when pulling my Poly M14 bolt apart and then reassembling it.
Initial Impression:
The unit is large and designed that way it seems. I can clamp this unit into my bench vise so that I can use both hands on the assembly/disassembly process should I have more than 1 bolt (M1 Garand / M14/ M1A) to work on.
The Allen screws are great thought because one only needs a 3/16" Allen key for the :
-Ejector push screw (that's what I call it)
-Extractor push screw under the body
-Bolt body forward push screw
Here's the Allen key in place(s)
Then one needs a 1/8" Allen key for the bold body retaining plate... a wonderful addition to the tool's design. You see I have an American made Strobel tool that has no means to hold the bolt body down (so in my welfare approach, I just a zip tie to hold the bolt body down while being disassembled or reassembled)
Here's the Poly M14 bolt in the Strobel unit....
And finally you need a 5/64" Allen key to adjust the center screw located on the middle of the bolt retaining plate, this puts the necessary tension on the top of the bolt's mid-body. Everything is held down nicely and nothing jumps out of place only to be lost on the cement shop floor.... been there, done that too many times.
Okay, I'm really impressed with using the 3/16" Allen key to adjust the depth of the ejector plunger screw... no messing around. No nasty surprises. I'm stoked on this unit.
Then I'm excited about the bolt body forward push screw because this screw totally secures the bolt body forward and there is no slop whatsoever during the re-assembly process. What a great design.
Bolt Dis-assembly:
Just lock the bolt down with it's retaining plate. Using the bolt body forward push screw and 3/16" Allen key, ensure the bolt body is all the way forward. Then with the same 3/16" Allen key tighten the ejector plunger screw all the way in, this relieves the pressure on the extractor spindle so it can rise above the bolt body and you are almost home free.
Then under neath this M14 Doctor tool, take the 3/16" Allen key (Hey... everything STAYS in place...
No nasty surprises like the old days) and then tighten up that screw (righty-tighty) until that extractor rises up and the bolt is disassembled. Nothing goes flying anywhere...
What a relief!
Bolt Assembly:
Here's where I love this unit and life is good. In the past I always had the ejector and it's spring go flying out all over the shop floor. No more with this tool.
Let's do it! Back off the ejector plunger screw with the 3/16" (I love this unit) completely. This is my favorite part of the reassembly process. As you move the bolt body with the ejector spring and ejector forward, the nose of the ejector rests on the hole of that (backed off now) ejector plunger screw. This hole even HOLDS and ensures the alignment of the ejector assembly because this combination loves to (piss you off and) spin while juggling all the loose pieces.
Now move the bolt body forward push screw all the way forward until the bolt body cannot move anymore (I'm so happy with this... no more flying parts). All this time the bolt body retaining plate should be over the bolt that's being re-assembled.
Here is that bolt body push screw moving that bolt body forward with no nasty surprises (flying bolt parts)
The designers did their homework. They left a large opening by the right bolt lug so that I can use a flat bladed screw driver to push the extractor plunger/spring combination rearward so that the descending extractor will not 'chop' and destroy this extractor plunger/spring combination. I've done this screw up many times. I'm so happy, now I don't need a 3rd and 4th hand for this project.
Have a look at this large opening to access the extractor plunger/spring assembly so that you will guarantee the smooth extractor insertion.
Almost home! I clamped this M14 Doctor tool into my vise so that I can now keep that flat bladed screw driver pushing rearward on the extractor plunger/spring and then with my other hand, push down on an 8" long 3/8" socket extension... this will seat the extractor in place. Not much effort.
That has to be the easiest bolt assembly I've done in 27 years!
Final Thoughts:
Should one get this unit?
Especially if you have a Garand and or another M14 (more so if it's a Poly or Norc with tight spring in the bolts)
Will my #### fall off if I don't get one?
I've never used a bolt tool EVER because I'm the kind of guy who ONLY learns by screwing up. Now the lessons have greater meaning and significance and I'm the genius after all that grief.
I always had my wife or sons nearby to rubber mallet that extractor while my 2 hands secured all the little pieces in alignment.
Seriously, once you experience the nasty fun of flying bolt springs/parts on your shop floor and then
LOSING them permanently, you will want to get this unit. 
If you don't have spare bolt parts, now you are really screwed (been there, done that). Serves you right for not taking my advice: don't ever pull yer bolt apart to clean it... Aerosol Brake Cleaner is your friend. But if the bolt comes apart on it's own while firing (been there, done that also) that's another issue! You should keep one of these handy!
So where does one find this unit: Gothmog (I'll get back to ya!)
Hope all this will help your M14/ M1 Garand addiction....

Barney
Initial Impression:
The unit is large and designed that way it seems. I can clamp this unit into my bench vise so that I can use both hands on the assembly/disassembly process should I have more than 1 bolt (M1 Garand / M14/ M1A) to work on.
The Allen screws are great thought because one only needs a 3/16" Allen key for the :
-Ejector push screw (that's what I call it)
-Extractor push screw under the body
-Bolt body forward push screw
Here's the Allen key in place(s)

Then one needs a 1/8" Allen key for the bold body retaining plate... a wonderful addition to the tool's design. You see I have an American made Strobel tool that has no means to hold the bolt body down (so in my welfare approach, I just a zip tie to hold the bolt body down while being disassembled or reassembled)
Here's the Poly M14 bolt in the Strobel unit....

And finally you need a 5/64" Allen key to adjust the center screw located on the middle of the bolt retaining plate, this puts the necessary tension on the top of the bolt's mid-body. Everything is held down nicely and nothing jumps out of place only to be lost on the cement shop floor.... been there, done that too many times.
Okay, I'm really impressed with using the 3/16" Allen key to adjust the depth of the ejector plunger screw... no messing around. No nasty surprises. I'm stoked on this unit.
Then I'm excited about the bolt body forward push screw because this screw totally secures the bolt body forward and there is no slop whatsoever during the re-assembly process. What a great design.
Bolt Dis-assembly:
Just lock the bolt down with it's retaining plate. Using the bolt body forward push screw and 3/16" Allen key, ensure the bolt body is all the way forward. Then with the same 3/16" Allen key tighten the ejector plunger screw all the way in, this relieves the pressure on the extractor spindle so it can rise above the bolt body and you are almost home free.
Then under neath this M14 Doctor tool, take the 3/16" Allen key (Hey... everything STAYS in place...
Bolt Assembly:
Here's where I love this unit and life is good. In the past I always had the ejector and it's spring go flying out all over the shop floor. No more with this tool.
Let's do it! Back off the ejector plunger screw with the 3/16" (I love this unit) completely. This is my favorite part of the reassembly process. As you move the bolt body with the ejector spring and ejector forward, the nose of the ejector rests on the hole of that (backed off now) ejector plunger screw. This hole even HOLDS and ensures the alignment of the ejector assembly because this combination loves to (piss you off and) spin while juggling all the loose pieces.
Now move the bolt body forward push screw all the way forward until the bolt body cannot move anymore (I'm so happy with this... no more flying parts). All this time the bolt body retaining plate should be over the bolt that's being re-assembled.
Here is that bolt body push screw moving that bolt body forward with no nasty surprises (flying bolt parts)

The designers did their homework. They left a large opening by the right bolt lug so that I can use a flat bladed screw driver to push the extractor plunger/spring combination rearward so that the descending extractor will not 'chop' and destroy this extractor plunger/spring combination. I've done this screw up many times. I'm so happy, now I don't need a 3rd and 4th hand for this project.
Have a look at this large opening to access the extractor plunger/spring assembly so that you will guarantee the smooth extractor insertion.

Almost home! I clamped this M14 Doctor tool into my vise so that I can now keep that flat bladed screw driver pushing rearward on the extractor plunger/spring and then with my other hand, push down on an 8" long 3/8" socket extension... this will seat the extractor in place. Not much effort.
That has to be the easiest bolt assembly I've done in 27 years!
Final Thoughts:
Should one get this unit?
Especially if you have a Garand and or another M14 (more so if it's a Poly or Norc with tight spring in the bolts)
Will my #### fall off if I don't get one?
I've never used a bolt tool EVER because I'm the kind of guy who ONLY learns by screwing up. Now the lessons have greater meaning and significance and I'm the genius after all that grief.
Seriously, once you experience the nasty fun of flying bolt springs/parts on your shop floor and then
If you don't have spare bolt parts, now you are really screwed (been there, done that). Serves you right for not taking my advice: don't ever pull yer bolt apart to clean it... Aerosol Brake Cleaner is your friend. But if the bolt comes apart on it's own while firing (been there, done that also) that's another issue! You should keep one of these handy!
So where does one find this unit: Gothmog (I'll get back to ya!)
Hope all this will help your M14/ M1 Garand addiction....

Barney