Grinding Bits

[Lamaddict]

Looking to buy some but which ones? I'm planning to take off the sharp edges around the ports.

[10 inch Terror]

These are very good for the money.

https://www.ebay.co.uk/itm/221795028249

[fairspares]

It might be worth using demel type small sanding drums , you will be less likely to take to much off or slip and cause damage if this is your first attempt at this, if you planning on taking quite a bit off then the burr cutters will be better.

[EddieStone]

How about a file? A small half round file should sort it

[10 inch Terror]

I use them with an air grinder. If you're careful they can be used on the casing transfers and are particularly good on cast iron barrels,you just need a steady hand. The dremel can be used to finish off and polishing up.

[corrado]

How about a file? A small half round file should sort it

That's all I use to chamfer the ports, you can just about get to all of them if you're careful.

Here's a link to proper porting tools. http://www.ccspecialtytool.com/

Here's a video of the proper tools in use .. https://www.youtube.com/watch?v=43Qb8tJ49A8

[EddieStone]

Things go wrong much more slowly with a file!

[corrado]

Things go wrong much more slowly with a file!

Amen to that.

[Chris in Margate]

What a brilliant saying.

"Things go wrong much more slowly with a file!"

Love it. So true.

[corrado]

I tried one of those 3 legged glaze busters in a hand held electric drill once. Just a practice run on an old knackered barrel, now that did quickly get out of hand, it caught the sleeve of my sweatshirt and got jammed. I had visions of it ripping a chunk out of my arm, but thankfully it jammed in the material when it wrenched the drill out of my hands. I leave that job to an expert these days and binned the glaze buster.