Backside counterbore
Backside counterbore
(OP)
I have a part that needs a counterbore on the inside wall of the part, drilled through to the outside. Are most machine shops equiped to do this?
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RE: Backside counterbore
You may have to front for special tooling.
http://www.vermontindexable.com/counterbores.html
RE: Backside counterbore
Software For Metalworking
http://closetolerancesoftware.com
RE: Backside counterbore
I answered the OP as if they wanted a full counterbore, like for a SHCS, not just back spot face like for a nut. Vermont makes both tools if the OP has to front for a tool. The Vermont tools have some advantages.
Our shop used ERIX back spot facing tool to fix the nut landing areas on our flanges.
http://www.erixtool.com/
RE: Backside counterbore
I prefer the solid Vermont tools myself. That flip-out wing on the Erix has been a little unreliable for me - especially bad when it doesn't fold back up before retracting through the hole!
Software For Metalworking
http://closetolerancesoftware.com
RE: Backside counterbore
We do most of our work on a horizontal mill. Fortunately this lets us monitor the work and tool bit.
RE: Backside counterbore