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Home > Lathe Projects > New Project: Plans for a MT3 Die Holder (for 1″ and 1.5″ Dies)

New Project: Plans for a MT3 Die Holder (for 1″ and 1.5″ Dies)

Here’s a set of plans for a handy Die Holder that fits any lathe with a #3 Morse Taper tailstock.

The aluminum body of the die holder holds the die perpendicular to the axis of the spindle rotation and rotates freely around a steel shaft firmly inserted into the tailstock. This ensures that your part is threaded perfectly.

Here’s a picture of the Die Holder with a 1.5″ die inserted:

Here’s a picture of the Die Holder flipped 180 degrees with a 1″ die inserted:

I got the idea from Steve Bedair’s Die Holder and I adapted it to look similar to a smaller die holder sold here by LittleMachineShop.com.

I created the plans myself using Autodesk Inventor. It was my first attempt using the software, and my first time drawing up plans for the machine trade – so if there are any errors please let me know and I’ll do my best to fix them.

Here are the plans (in PDF format):

  MT3_Die_Holder_-_1.0_to_1.5_Inch.pdf (999.4 KiB, 3,236 downloads)
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About Tyler

Tyler is a hobby machinist and 3D printing aficionado. He teaches computer programming and web development at Highline College near Seattle. Tyler founded Projects In Metal in 2008 because he was frustrated by the lack of free plans available for hobby machinists.

21 comments

  1. Slightly annoyed this morning… My 1″ dies are admittedly cheap Chinese ones but its seems that a few of them have different OD’s, i.e. not all exactly 1″.

     

    About half of them are up to a good 0.4mm smaller than the 25.4 that they should be.  Whilst it doesn’t sound a lot, when they are in the holder they are not quite on centre – seems OK in soft metals, but I had to cut an M6 thread on 316 stainless and getting it started was a PITA.

     

    By contrast, the Snap-on ones and 2″ ones I have are all spot.