Need Help ID modular CAT-40 holders - 4 bolt+drive key, 32mm \x 52mm machined shank
Hi,
Ive run into a set of modular CAT40 toolholders, they all have 4 bolts and a drive key on a 32mm x 52mm long central shank (measuring the machined part of the shank), its a close interference type fit (the bolts could be used to adjust run-out but there isn't any huge runout on the shank - you gotta keep em clean).
The set I've seen has ER-32 collets, ER-40 collets, a boring tool and a threadmilling / grooving tool, I've looked hard and long online but haven't had any luck finding what these are..
Anyone know ?
See attached pics...
![IMG_0365[1].jpg](https://www.practicalmachinist.com/forum/data/attachments/213/213345-39b0a1deb4af6778aa6d77c7265fb929.jpg "IMG_0365[1].jpg")
![IMG_0364[1].jpg](https://www.practicalmachinist.com/forum/data/attachments/213/213346-ee25dca53280a4f1ecf7b2b6f186588a.jpg "IMG_0364[1].jpg")
![IMG_0366[1].jpg](https://www.practicalmachinist.com/forum/data/attachments/213/213347-e4390c73a5832b45fe6d469421781d29.jpg "IMG_0366[1].jpg")
![IMG_0374[1].jpg](https://www.practicalmachinist.com/forum/data/attachments/213/213348-a8eaf6b09e85ee6cec723fb2ab20740b.jpg "IMG_0374[1].jpg")
![IMG_0373[1].jpg](https://www.practicalmachinist.com/forum/data/attachments/213/213349-41374bc102129fa57881318a509c1809.jpg "IMG_0373[1].jpg")
Hi,
Ive run into a set of modular CAT40 toolholders, they all have 4 bolts and a drive key on a 32mm x 52mm long central shank (measuring the machined part of the shank), its a close interference type fit (the bolts could be used to adjust run-out but there isn't any huge runout on the shank - you gotta keep em clean).
The set I've seen has ER-32 collets, ER-40 collets, a boring tool and a threadmilling / grooving tool, I've looked hard and long online but haven't had any luck finding what these are..
Anyone know ?
See attached pics...
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