Inserts ?

[dlane]

ive had these kicking around for a while , don't think i have a holder for them, I'm thinking threading inserts .
Are these common inserts or obsolete, think there worth anything ?.
Thanks


Second pic is the back side

 

[Billh50]

Many people use those inserts for threading. They are not obsolete.

 

[dlane]

Thanks bill , I'll dig thru some boxes and see if I can find a holder they fit .

 

[dlane]

No holders for them

 

[Ulma Doctor]

Hi Derrick, i'm no expert but i saw that they are for 1/2" inscribed circle toolholders, like this
http://www.shars.com/media/catalog/...2ffe127f42dca9de82fb58b1/4/0/404-1281main.jpg
i hope the info helps

 

[dlane]

All I could find is left handed internal threading, I haven't done much threading but would like to be able to, would these be worth hanging on to, if I get the rite holder for them , they seem pricey at kennametal.

 

[master of none]

Hey Derrick,my philosophy is it's better to have it and not need it then to need it and not have it.

 

[dlane]

Hi mike thanks all, if I wanted to get one of those insert holders ? What did you search for to pull that up, it didn't show a price or any order info ,

 

[kd4gij]

http://www.shars.com/products/indexable-cutting/threading-holders

 

[4GSR]

I don't thread often, but this my go to insert when I do thread. They hold an edge for a long time. They both look to be external inserts and to me look like 16er's. Put them up to a 300 series, 3/8 IC, triangle insert or a 400 series,1/2 IC, triangle insert to verify.