Boring Deep But Small Holes

Gallery, Projects and General > How do I??

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Fergus OMore:
Sounds awfully complicated! Me, I am still in the chalk and slate era :poke:.

Seriously though the thing becomes one which needs a basic solution- and that is to grip 10mm and I would have thought that if a 10mm drill was a possibility( poor possibility), mine with a D Bit acting like a sort of one edged reamer might be suitable.

We await results with baited breath.

Cheers

Norman

John Stevenson:
Tapered bush to fit the spindle behind the chuck if it has a tapered spindle ? with 10mm hole in for reamer support.
Reamer held in the turret.
Close the jaws a tad at a time and spin the chuck by hand, you only need to get witness marks on the jaws

Stilldrillin:

--- Quote from: John Stevenson on February 10, 2015, 04:20:21 AM ---Tapered bush to fit the spindle behind the chuck if it has a tapered spindle ? with 10mm hole in for reamer support.
Reamer held in the turret.
Close the jaws a tad at a time and spin the chuck by hand, you only need to get witness marks on the jaws

--- End quote ---

That's a great idea! Supported at both ends. :thumbup:

Or a boring bar, with central tool.......

David D

awemawson:
Nice one John - but no tapered spindle bore :(

It's going to get a 3/8" (9.5 ish mm) end mill up it's jacksy, followed by a 10 mm spiral reamer and if it doesn't like it tough :lol:

sparky961:
Sounds like you need a collet chuck.

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