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Old 15th Mar 2021, 12:48 pm   #5
Ambientnoise
Heptode
 
Join Date: Feb 2006
Location: Marlborough, Wiltshire, UK.
Posts: 737
Default Re: Enlarging an existing hole in a steel chassis.

A “Conecut” or look alike will do it. Like a step drill without steps. Cheapo versions come up at Lidl/Aldi quite regularly. Only problem is that they obviously cut tapered holes but not an issue on thin chassis metal.
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