What is this for ?

What is this for ?

This topic has 7 replies, 6 voices, and was last updated 16 January 2019 at 07:47 by Mike Poole.

Viewing 8 posts - 1 through 8 (of 8 total)

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15 January 2019 at 22:59 #19209
Ian Usmar
Participant
@ianusmar79339
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15 January 2019 at 22:59 #391258
Ian Usmar
Participant
@ianusmar79339
Can anyone identify the attached piece of tooling I purchased it a while ago but cannot remember what for. Also it's a 2MT which does not fit the Drummonds 1MT how easy is to recut / grind a 1MT ? In fact most of my tooling cannot fir the Drummond, do I sell it on and get new stuff.
15 January 2019 at 23:03 #391259
Clive Brown 1
Participant
@clivebrown1
It's a boring head designed by G H Thomas and described in ME in the '80s

I made one with MT3 and slightly bigger all-round. A good design typical of GHT.

Edited By Clive Brown 1 on 15/01/2019 23:04:30
15 January 2019 at 23:08 #391260
Danny M2Z
Participant
@dannym2z
G'day Ian, It appears to be a tailstock taper turning attachment.

It also appears to be nicely made with the adjustable gibs and graduated offset dial.

Noway would I mess with the taper, to much chance of ruining it !

* Danny M *
15 January 2019 at 23:15 #391263
HughE
Participant
@hughe
Agree with Clive GHT boring head. I have one identical to yours.

Can't remember if the MT can be changed. Will check tomorrow.

Hugh

Edited By HughE on 15/01/2019 23:17:29
15 January 2019 at 23:35 #391267
Ian Usmar
Participant
@ianusmar79339
The good news about the taper is I have found an adaptor by Proops on a well known auction site so can leave as is .
16 January 2019 at 07:11 #391279
JasonB
Moderator
@jasonb
I would be weary of using a boring head in a long step up adaptor as you will not have a very rigid setup and with little chance of being able to use a drawbar you could find one parting company with the other.
16 January 2019 at 07:47 #391283
Mike Poole
Participant
@mikepoole82104
The taper should unscrew from the body and you can then fit the mounting of your choice. The thread detailed in GHT’s book is 5/8×16 but the builder may have deviated from the design. It is quite a big item to use on a no.1 taper and would really need a drawbar to use as a boring head. Using as an adjustable centre for taper turning would probably be ok but a waste of a much more useful tool.

Mike

Edited By Mike Poole on 16/01/2019 08:07:59
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