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Counterbore as facemill?

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colin hamilton	25/08/2023 19:47:43
186 forum posts 94 photos	I bought a joblot of machine tooling and it included these tools. It turns out they are granlund counterbores. I nearly had a heartattack when i saw how much they cost!! They vary in size up to 50mm. I'm never going to need a counterbore anywhere near that big so was wondering if I could use the larger ones as facemills or given the price of them better to sell them on. Cheers Colin Edited By colin hamilton on 25/08/2023 19:48:21
Thor 🇳🇴	26/08/2023 07:13:22
1766 forum posts 46 photos	Hi Colin, Nice find, why not try one of the larger counterbores and see how it works as a face-mill. Thor
John Haine	26/08/2023 07:17:47
5563 forum posts 322 photos	Its teeth will probably not have side clearance so not operate very effectively as a face mill. As Thor suggests, give it a try? Nothing to lose.
colin hamilton	26/08/2023 07:46:09
186 forum posts 94 photos	Posted by Thor 🇳🇴 on 26/08/2023 07:13:22: Hi Colin, Nice find, why not try one of the larger counterbores and see how it works as a face-mill. Thor Thanks. I will do but given how much they cost I wanted to check I won't just trash them
Michael Gilligan	26/08/2023 09:04:29
23121 forum posts 1360 photos	Posted by colin hamilton on 26/08/2023 07:46:09: . Thanks. I will do but given how much they cost I wanted to check I won't just trash them . I ‘second’ your caution … Counterbores are specifically designed for plunge-cuts The use of a Rolls Royce as a chicken-coop springs to mind ! Try offering one for sale … the result should ‘inform your decision’ MichaelG.
colin hamilton	27/08/2023 13:50:07
186 forum posts 94 photos	I reckon I'm just going to find some projects that need a whole load of various counterbores
old mart	27/08/2023 17:39:12
4655 forum posts 304 photos	I think you should select the sizes that would be most useful and keep them, sell the rest.

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