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Uncle Henry
11th Mar 2017, 07:48 PM
The spring loaded screws with cast lever that adjust the tool rest on my MC900 lathe have snapped.

I'm pretty sure this is a common problem but I have no idea what they are called in order to find replacements.
Searching for tool rest levers shows a few results but these things must have an actual name so I can just find the thread size and order them online.

this sort of thing:

Lathe Tool Rest upgrade kit Levers - Martins Supplies UK Store (http://martins-supplies.co.uk/presta/lathe-turning-chuck-jaws-chisel/559-lathe-tool-rest-upgrade-kit-levers.html)

Pat
11th Mar 2017, 08:18 PM
Give Hare & Forbes a call.

Or look up Ratchet Lever on ebay.

Bohdan
11th Mar 2017, 08:25 PM
They are called Indexing Handles. Metric and probably Imperial ones are available from Blackwoods in various diameters and lengths.

If you take the broken one to them they will be able to identify the thread and supply you with a replacement.

Blackwoods Catalogue 2016 (http://content-au.secure-zone.net/blackwoods/2016/?utm_source=webpage&utm_medium=button&utm_content=catbutton&utm_campaign=cataloge#page=1378&search=Knobs)

Uncle Henry
11th Mar 2017, 08:33 PM
They are called Indexing Handles. Metric and probably Imperial ones are available from Blackwoods in various diameters and lengths.

If you take the broken one to them they will be able to identify the thread and supply you with a replacement.

Blackwoods Catalogue 2016 (http://content-au.secure-zone.net/blackwoods/2016/?utm_source=webpage&utm_medium=button&utm_content=catbutton&utm_campaign=cataloge#page=1378&search=Knobs)


Perfect!

That's exactly what I need. Blackwoods is close to me.

Cheers.

Uncle Henry
12th Mar 2017, 08:19 AM
They're expensive little things. Over $20 each for M8!
Maybe thats why the ones that came on the lathe were so crap.

chambezio
12th Mar 2017, 09:49 AM
Go to Ebay and look under "Lever Handles" trawl through to find the lowest prices and you will be able to pay probably only $3-5.
OR
Find a bolt that fits, cut off the head and then bend it to give you a lever that will last for ever.

wm460
12th Mar 2017, 10:09 AM
Here's a couple for you.

M5 M6 M8 M10 M12 M16 Male Thread Clamping Lever Adjustable Handle Grip Knob NEW | eBay (http://www.ebay.com.au/itm/M5-M6-M8-M10-M12-M16-Male-Thread-Clamping-Lever-Adjustable-Handle-Grip-Knob-NEW-/302189691952?var=&hash=item465be8c430:m:mXTULuUivWH-2uQhjqWjKAQ)

M8 Thread Clamping Lever Machinery Adjustable Locking Threaded Handle Knob | eBay (http://www.ebay.com.au/itm/M8-Thread-Clamping-Lever-Machinery-Adjustable-Locking-Threaded-Handle-Knob-/301668421224?hash=item463cd6ce68:g:PNoAAOSwTM5YuKNF)

Uncle Henry
12th Mar 2017, 10:47 AM
Here's a couple for you.

M5 M6 M8 M10 M12 M16 Male Thread Clamping Lever Adjustable Handle Grip Knob NEW | eBay (http://www.ebay.com.au/itm/M5-M6-M8-M10-M12-M16-Male-Thread-Clamping-Lever-Adjustable-Handle-Grip-Knob-NEW-/302189691952?var=&hash=item465be8c430:m:mXTULuUivWH-2uQhjqWjKAQ)

M8 Thread Clamping Lever Machinery Adjustable Locking Threaded Handle Knob | eBay (http://www.ebay.com.au/itm/M8-Thread-Clamping-Lever-Machinery-Adjustable-Locking-Threaded-Handle-Knob-/301668421224?hash=item463cd6ce68:g:PNoAAOSwTM5YuKNF)

Thats more like it.

When I searched ebay for indexing handle only expensive ones showed.

I'll order a couple so I have spares.

cheers :2tsup:

BlackbuttWA
12th Mar 2017, 11:17 AM
I bought mine from https://mcjing.com.au/categorybrowser.aspx?categoryid=144

Great selection & Very happy

Col

KBs PensNmore
12th Mar 2017, 09:26 PM
I've quite a few of those around on various machines, they break quite easy. How I fix mine, go to Crime Converters, and grab a heap of cheap sockets that fit, weld a bolt (minus the head) onto the socket at an appropriate angle, put a ball on the end for comfort and the jobs done.Then swap the parts over.
Kryn

hughie
12th Mar 2017, 09:33 PM
if you get stuck D&D Barry - The No.1 Choice for Standard Parts in Australia (http://www.ddbarry.com.au/)

NeilS
13th Mar 2017, 12:45 PM
In my experience the very cheap eBay replacements are prone to cracking. However, price isn't always an indicator of quality.

You are more likely to get quality from one of the above recommended suppliers.

Stay sharp!

Neil