For the ML7 I used the Cobolt HSS 'T' section one (from RDG?). Was excellent. But don't seem to be able to get in a larger size for the Student. So I ended up with Iscar, after disappointing results with alternatives including cheapo Chinese insert holders. If you decide to try an insert type, beware of the holders that just have a taper and no anvil. Stops the insert from splaying the holder. I thought I'd bought the 1st image and 2nd image arrived. Refunded.I need a parting off tool for my ML7. Is it worth going for the blade type with removable inserts? It seems like a costly way to go about it.
I got mine from Chronos and find they work well on my little hobbymat too, I use a 2mm x 10mm blade on a 5/16"square shankFor the ML7 I used the Cobolt HSS 'T' section one (from RDG?). Was excellent. But don't seem to be able to get in a larger size for the Student. So I ended up with Iscar, after disappointing results with alternatives including cheapo Chinese insert holders. If you decide to try an insert type, beware of the holders that just have a taper and no anvil. Stops the insert from splaying the holder. I thought I'd bought the 1st image and 2nd image arrived. Refunded.
All the more expensive holders do a similiar approach with some form of stop. Only the dirt cheap ones don't
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That's it Chronos not RDG....eBay history didn't go back far enough.I got mine from Chronos and find they work well on my little hobbymat too, I use a 2mm x 10mm blade on a 5/16"square shank
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New Clamp Type Parting Tools with Chipbreaker Blade (5% cobalt) from Chronos, with Free UK delivery and great worldwide delivery rates. Chronos Engineering tools.www.chronos.ltd.uk
...I use a 2mm x 10mm blade on a 5/16"square shank
don't know what you mean,That is the difficulty with the blades: they are very shallow compared to their width. This increases deflection and reduces useable stickout and hence the diameter of stuff you can cut. You could roughly work on a stickout equal to the blade depth, so the cutting force goes at 45 degrees back into the holder.
Compare and contrast typical HSS blade 2mm x 10mm deep and 2mm inserted tool 2mm x 19.5mm deep (https://www.arceurotrade.co.uk/Cata...ng-Tools/ARC-NCIH-Part-Off-Blade-Tool-Holders). Since stiffness increases with the cube of depth, that is a big difference.
I don't know if there is a "proper" reason but I had to make 49 little tapered pins the other day and constantly winding the carriage back and forth then changing the tool holder to part each one off was a pain.Why is it recommended to use the parting tool on a rear tool post?
the tip wont dig in using the cutting tool upside down from the rear grit your teeth if it does cutting from the frontWhy is it recommended to use the parting tool on a rear tool post?