[Radio Wrangler]

I keep a set of good quality tapered reamers, the long stepless ones. Operating them by hand is fine, food ones are sharp and will cut gently without grabbing. This way I can monitor the centring as I go and a little tip of the tool will steer it's progress so I can control the cutting so it is even around the perimeter.

Brilliant tools. You can smoothly ream a quarter inch starter hole out to an inch or more without feeling like you've run a marathon. The ability to cut is one thing, the ability to control the cut is even more important.

David