UK Vintage Radio Repair and Restoration Discussion Forum - View Single Post - Enlarging an existing hole in a steel chassis.

chriswood1900 · 15th Mar 2021, 1:30 pm

I would use a taper reamer like this obtainable from most of the usual suspects. ebay, Amazon etc. https://precisehandtools.com/tr-04-t...mm-30mm-holes/
Other options might include a step drill but that will usually cut in 2mm intervals so 22mm is nearest.
Good luck

15th Mar 2021, 1:30 pm	#4
chriswood1900 Octode Join Date: Jan 2007 Location: Dorridge, West Midlands, UK. Posts: 1,479	Re: Enlarging an existing hole in a steel chassis. I would use a taper reamer like this obtainable from most of the usual suspects. ebay, Amazon etc. https://precisehandtools.com/tr-04-t...mm-30mm-holes/ Other options might include a step drill but that will usually cut in 2mm intervals so 22mm is nearest. Good luck __________________ Chris Wood BVWS Member