Gallery, Projects and General > Oooops!

Broken tool tip clamping screw

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vintageandclassicrepairs:
Hi All,
Thanks for the replies,
Dave is more than likely correct with the tools origin,
But I am not a lot nearer a solution :bang:
I found these pins on ebay and am wondering if it may be possible to machine away the top part
and drill and tap for the torx screw ?

http://www.ebay.ie/itm/191655873836?_trksid=p2060353.m1438.l2649&ssPageName=STRK%3AMEBIDX%3AIT

John

awemawson:
Did the screw head ever actually hold the insert down? The reason I ask is that some holders have a screw with an eccentric shoulder that locates in the hole in the insert. As you turn the screw the eccentric pulls the insert back into the pocket thus locating it fore & aft, with the cutting forces holding in on it's seat.

I have a couple of that style with broken screws, and I turned an eccentric peg on the end of a suitable allen socket cap screw inserted from below the holder as the threaded hole goes all the way though the tool.
 

Manxmodder:
As others have said I reckon the Rototool Castolin Eutectic is a red herring here.

A PSSNR20/20 K12 is a industry standard roughing tool. 

Check these links out to see if you can find the part you're looking for.
http://www.shop-apt.co.uk/spare-parts.html

Here is the actual tool,if you scroll down to bottom of this linked page you will see photos of the associated spare parts.
http://www.shop-apt.co.uk/pssnr-toolholders-for-snmg-inserts/pssnr-2020-k12-turning-tool-holder-20x20mm-shank-right-hand-uses-snmg-1204-inserts-canela.html

....OZ.

vintageandclassicrepairs:
Hi Andrew,
Yes I had the torx screw out quite a few times,
I made the mistake of not looking carefully enough to se the torx socket in the underside and used the top screw to try and lock in the spacer retaining part :palm:
then I couldnt separate the two parts :doh:

The parts in the links Oz posted are similar but not the same, they all use a clamp or eccentric to secure the tip
My toolholder does not have the second screw shown

John

chipenter:
Emale Jenny at JB Cutting tools with photos , she has impressed me at shows with the range and her knowledge .

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