Mystery Bit with a weird twist!

[bigal]

Hi to all,

I have been given this brand new bit by a mate, who thought it was a router bit.

On closer inspection I thought it looked more like one of those multi angle drills "MAD bits" like a directional version of a Forstner.

Then I noticed the flat on the shank, the shank is 10mm btw and the flat is the only one which put an end to my idea.

Just to further confuse me I discovered that the cutting edges are ALL facing the wrong way! The cutter is definately designed to rotate aniclockwise! Any ideas folks?

Al

 

[Random Orbital Bob]

That looks like its for some kind of proprietary fitting (like the bits for the festool domino are unique to that tool design). Maybe a Mafell or one of those specialised jobs??

 

[Chrispy]

Dowel boring machines often have shafts counter rotating ie one clockwise then anti etc. this I'm sure is a bit for a machine of this kind.

 

[jpt]

It looks like a CMT bit http://www.acetoolonline.com/CMT-57mm-T ... s/4396.htm

 

[deserter]

Could be from a multi borer they normally have black shanked bits running the normal way and red or orange bits running in reverse. Also they have flat sides to fit into the push fittings.


~Nil carborundum illegitemi~

 

[bigal]

I forgot to mention that there is a grub screw down the middle of the shaft for adjusting something.

I think you guys might be right about multi borers!

Next question is does anyone need one?

Al

 

[bigal]

Bump! Nobody interested in a free brand new left hand boring bit then? :shock:

Al

 

[Jonzjob]

Could it be for filling holes in?? :?

OK, I'll get me 'at!

 

[bigal]

"Could it be for filling holes in??"

Hi John, I didn't think of that!

Sadly I can't try it since I lost my left handed screwdriver to adjust it!

Al

Seriously though does anyone need it?

 

[Jonzjob]

Ah!!! But that is the point Al, you don't need to turn it backwards. It already is backwards, arsefirst as it were?? :mrgreen: :mrgreen:

The 'grub screw' shouldn't be LHD??

If I could find a use for it I would grab at that, but ???