Thread: Carbide Toolholder advice

I am currently using a rather old SECO 20mm insert holder (MCLNR) with CNMG110308 inserts. I have found this to work quite well in my lathe. The problem is that the inserts are hard to get. I can buy them from General Tools in Adelaide, but have not had any success on EBay. I am wondering whether it would be a good idea to change to a more common type. CNMG searches come up with lots of name brand inserts at good prices for CNMG3xx which are only slightly bigger than my current ones.

My question is should I change to this size holder / insert or is there a better type of insert to use. The 80 deg inserts seem to be popular for straight cutting.

Dean

Hi Dean,
The trigon WNMG inserts offer better value for money as you get 6 corners instead of the 4 you get with the CNMG. TNMG is the same but i don't like the approach angle as much. The WNMG holder is MWLNR/L.

Cheers,
Ewan

Originally Posted by Ueee

Hi Dean,
The trigon WNMG inserts offer better value for money as you get 6 corners instead of the 4 you get with the CNMG. TNMG is the same but i don't like the approach angle as much. The WNMG holder is MWLNR/L.

Cheers,
Ewan

What? Lose all those 100 deg corners? I had been considering using these (100 deg corners) after reading the post from Jekyll and Hyde in the "Your latest Project" thread, but what you say makes good sense. I will be considering these.

Thanks Ueee.

Dean

I run 20mm tools and WNMG0804XX inserts...

I got my holders from CTC tools.. They were good quality..

Originally Posted by .RC.

I run 20mm tools and WNMG0804XX inserts...

I got my holders from CTC tools.. They were good quality..

Thanks .RC.

However! I have just been looking at CTC and their range. The holders looked good. Both RH and LH. Price was reasonable. Ok, what about the inserts? When I clicked on "their" link I must have typed in the info wrong! How can you type in a mouse click wrong? Sigh.

Cheers

Dean