Boring tools fitting question

Boring tools fitting question

This topic has 5 replies, 4 voices, and was last updated 7 March 2020 at 15:34 by Steviegtr.

Viewing 6 posts - 1 through 6 (of 6 total)

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7 March 2020 at 12:23 #455870
Bob Unitt 1
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@bobunitt1
I bought these boring tools on Ebay. When I fit them to my usual Dickson tool holder the flats on the boring-bar body set the replaceable tip at a considerable downward angle (see photo). Is this the way they're supposed to be when cutting, or do I need to make an angled adapter to hold them horizontal in the Dickson ?
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7 March 2020 at 12:23 #19649
Bob Unitt 1
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@bobunitt1
7 March 2020 at 12:32 #455872
Martin Connelly
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@martinconnelly55370
Correct as shown. Gives clearance below the cutting point.

Martin C
7 March 2020 at 12:45 #455874
mechman48
Participant
@mechman48
Posted by Martin Connelly on 07/03/2020 12:32:54:

Correct as shown. Gives clearance below the cutting point.

Martin C

Beat me too it; the tool tip should be on center line.

George.
7 March 2020 at 15:19 #455903
Bob Unitt 1
Participant
@bobunitt1
Thanks. I tried both positions, and neither gave a particularly good finish. I'll try a different insert and see if that's any better.
7 March 2020 at 15:34 #455906
Steviegtr
Participant
@steviegtr
I have been doing quite a bit with the boring bar in stainless. It is only the 12mm size, but to get a good finish I have to take very shallow cuts. There are articles somewhere about how they flex. For instance run the bar in & then back out. Take it back in without adjusting & it may take more metal away. Also I only go through at a slow rate. Seem to spend more time taking the birds nests out of the hole once it gets deep. Only a learner myself but hope it helps.

Steve.
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