Chamber reamer extension?

[11A-18A Vet.]

I have bought a PTG chamber reamer to open up the chamber (a tiny bit) in a custom-barreled 300WM which is a bit tight. I want to use the reamer without having to take off the action. What can I use to extend the reamer so I can turn it from behind the action? Thanks.

 

[Buttermilk]

They sell extensions for just such a purpose. Check with Brownells.

 

[AkleyFan]

A chamber reamer extension - look on eBay or the other supply shops like MidwayUSA, Brownell's, etc. They come in various lengths.

 

[Laguna Freak]

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[William Cameron]

PTG has a T-handle for their reamers/throaters. I bought one to do a 338 federal that wasn't headspacing in an AR, did it with the barrel in the receiver.