Pultra Lathe Question

Pultra Lathe Question

This topic has 5 replies, 4 voices, and was last updated 25 March 2019 at 08:55 by roy entwistle.

Viewing 6 posts - 1 through 6 (of 6 total)

Author

Posts
29 June 2017 at 23:19 #304895
Phil P
Participant
@philp
A bit of a long shot, but does anyone happen to have dimensional details of the buttress thread on a Pultra CJ.1 collet.

This is the 20mm diameter collet that fits the bigger 1590 size lathe, it seems to be about 15 TPI which is very non standard.

Thanks

Phil
Advert

29 June 2017 at 23:19 #25337
Phil P
Participant
@philp
1 July 2017 at 22:14 #305137
david bennett 8
Participant
@davidbennett8
Hi Phil – they are Schaublin w20 collets. dimensions are online.

Dave.
1 July 2017 at 22:33 #305138
Phil P
Participant
@philp
Hi

I had the same response on another forum as well.

Having done some more digging it seems they are indeed the same as W20, but with possibly a slightly shorter keyway according to one source.

This question was asked on behalf of a friend of mine who was just about to start setting up and making collets from scratch, hopefully we have saved him a lot of trouble.

Many thanks

Phil
24 March 2019 at 20:40 #402016
robin coleman
Participant
@robincoleman77853
I have a pultra lathe what thread sizes are used on the collets.

Regards

Robin
25 March 2019 at 08:55 #402063
roy entwistle
Participant
@royentwistle24699
Robin Depends on the size of the collet and which model lathe

Roy
Author

Posts

Viewing 6 posts - 1 through 6 (of 6 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- Hemholtz coil positioning
  Started by: John Purdy in: Clocks and Scientific Instruments
- 3
- 12
- 2 November 2026 at 02:56
  John Purdy
- 127t Gear With ⅞” Shaft and Keyway – Which Lathe?
  Started by: Captain Barnacles in: Workshop Tools and Tooling
- 10
- 13
- 2 November 2026 at 00:53
  Nigel Graham 2
- Strange Clarkson Autolock Collet
  Started by: JohnF in: Workshop Tools and Tooling
- 2
- 2
- 2 November 2026 at 00:11
  Nigel Graham 2
- Mini ER11 milling/drilling unit
  Started by: YouraT in: Manual machine tools
- 3
- 5
- 1 November 2026 at 23:06
  YouraT
- Unusual dual speed pulley on motor
  Started by: gerry madden in: Manual machine tools
- 6
- 8
- 1 November 2026 at 21:40
  Versaboss
- Bridge collapse 1 2
  Started by: JA in: The Tea Room
- 14
- 34
- 1 November 2026 at 20:13
  Mark Rand
- Blackening brass
  Started by: paul1956 in: Beginners questions
- 5
- 7
- 1 November 2026 at 18:49
  paul1956
- Sealey SM17 Pwer Hacksaw
  Started by: Danni Burns in: Manual machine tools
- 2
- 2
- 1 November 2026 at 18:32
  Howard Lewis
- Stronger Filament
  Started by: BOB BLACKSHAW 1 in: 3D Printers and 3D Printing
- 8
- 16
- 1 November 2026 at 17:28
  paul1956
- Inserts type for old milling cutter
  Started by: Sonic Escape in: General Questions
- 6
- 9
- 1 November 2026 at 16:38
  old mart
- Lubricating a high helix worm in a Mercer indicator
  Started by: Mark Davison 1 in: Clocks and Scientific Instruments
- 4
- 5
- 1 November 2026 at 15:02
  roy entwistle
- The Sunday bazar 1 2
  Started by: Sonic Escape in: The Tea Room
- 19
- 38
- 1 November 2026 at 13:00
  Sonic Escape
- What Did You Do Today 2026 1 2 … 9 10
  Started by: JasonB in: The Tea Room
- 56
- 237
- 1 November 2026 at 12:11
  Sonic Escape
- AI Bringing Engines to Life 1 2
  Started by: JasonB in: The Tea Room
- 15
- 32
- 31 October 2026 at 23:50
  duncan webster 1
- M7 Screws
  Started by: Vic in: Workshop Tools and Tooling
- 12
- 16
- 31 October 2026 at 18:35
  File Handle
- 5″ loco support jig
  Started by: Peter Venn in: General Questions
- 13
- 21
- 31 October 2026 at 17:52
  Bill Dawes
- My week this week! My workshop videos 1 2 … 13 14
  Started by: Phil Whitley in: The Tea Room
- 16
- 337
- 31 October 2026 at 16:21
  Phil Whitley
- Carbide hand files?
  Started by: Rainbows in: Workshop Tools and Tooling
- 11
- 20
- 31 October 2026 at 15:51
  JasonB
- Laser alignment for mag drill?
  Started by: Adam Harris in: Workshop Tools and Tooling
- 4
- 9
- 31 October 2026 at 06:50
  JasonB
- 3d models from 2d drawings
  Started by: duncan webster 1 in: CAD – Technical drawing & design
- 4
- 6
- 30 October 2026 at 20:27
  JasonB
- LOWMEX Model Show
  Started by: Ramon Wilson in: Exhibitions, Shows and Club Events
- 5
- 9
- 30 October 2026 at 20:13
  JA
- My EMCO FB-2
  Started by: Ger in: Manual machine tools
- 6
- 11
- 30 October 2026 at 13:21
  derek hall 1
- Boring Bars?
  Started by: Bo’sun in: Workshop Tools and Tooling
- 8
- 9
- 30 October 2026 at 09:38
  JohnF
- Fowler Regulator
  Started by: Andy Stopford in: General Questions
- 2
- 7
- 29 October 2026 at 21:06
  Andy Stopford
- Drummond M-Type 3.5-inch metal-turning bench lathe
  Started by: davidsewell in: Beginners questions
- 9
- 14
- 29 October 2026 at 19:52
  vic newey

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

November 2026

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies