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Forum topic by lumer posted 02-20-2020 10:16 PM 355 views 0 times favorited 8 replies Add to Favorites Watch
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13 posts in 3082 days

02-20-2020 10:16 PM

I purchased a lathe and it has a morris m1 taper shank and i find it is impossible to find a boring head with a m1 shank now does anyone know if a m2 taper shank will fit i realize it would be slightly bigger but perhaps it might not go into the sleeve as far which would be ok
Any help
Thanks bill

8 replies so far

View DS's profile


3424 posts in 3104 days

#1 posted 02-20-2020 10:35 PM

Rockler article on the subject.

-- "Hard work is not defined by the difficulty of the task as much as a person's desire to perform it.", DS251

View MrRon's profile


5863 posts in 3927 days

#2 posted 02-20-2020 10:47 PM

Rockler article on the subject.

- DS

Rockler is wrong. All the Morse tapers are different. #1 and #2 Morse tapers are real close, but have a different taper per foot. A #1 is .5986” taper/ft and a #2 is .5994” taper/ft.

View lumer's profile


13 posts in 3082 days

#3 posted 02-20-2020 11:33 PM

I guess from what i read then i can use a m2 taper shank instead of a m1 is the only thing that it would be a little bit longer ecause it would probably not go into the sleeve as far

View MrUnix's profile


7849 posts in 2883 days

#4 posted 02-20-2020 11:41 PM

Hmmm… for standard morse tapers, the large end of the MT1 is 0.475”, while the small end of an MT2 is 0.572”. While not all tapers are the same length, just from the looks of it, it won’t work – and if it does, you are most likely going to wreck your MT1 taper doing so.

Reference: Dimensions of Standard Tapers

I see a couple of MT1 boring heads on flea-bay, so they are obviously out there.


-- Brad in FL - In Dog I trust... everything else is questionable

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977 posts in 595 days

#5 posted 02-21-2020 12:02 AM

Check the Grizzly catalog, page 616 area to see if they have something.

Harbor Freight has MT1 drill chucks, not sure on their quality

you may have to google ‘MT1 drill chuck for lathes’ for possibilities.

View lumer's profile


13 posts in 3082 days

#6 posted 02-21-2020 12:20 AM

Ya i got a drill chuck from harbor freight with a m1 taper but i make those wooden rings and i have been looking for a boring head cutter with a m1 but so far have not found 1 need it for the tail stock end

View AndyJ1s's profile


238 posts in 439 days

#7 posted 02-23-2020 12:49 AM

A boring head and a drill chuck are two completely different things.

A drill chuck takes a drill bit, and drills a hole at whatever cutting diameter the drill bit has. The bit is concentric with the shank of the chuck.

Boring heads are used on metal lathes for accurately cutting the final diameter of a hole. They cannot start a hole though. They are kind of like a finely adjustable, heavy duty (and expensive) circle cutter.

There are Morse taper adapters that can adapt a #1 socket to accept a #2 taper, but they extend way out past the original socket (to have room for the larger #2 socket). Look at outfits that have metal turning accessories for small metal lathes.

-- Andy - Arlington TX

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2715 posts in 2178 days

#8 posted 02-23-2020 01:49 PM

MT1 (Morse Taper #1) Boring heads tend to be called micro boring heads? Few I have seen are 25-38mm OD using small 6-8mm shaft boring bars. Available on fleabay and Amadud, just type in ‘MT1 boring head’

Another option besides MT1 to MT2 adapter is MT1 to threaded adapter. One I own is 3/8-24 adapter for drill chuck.

Best Luck.

-- If it wasn't for bad luck, I wouldn't have no luck at all, - Albert King - Born Under a Bad Sign released 1967

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