|Robert Larson 570-9216 Stern Tools Countersink 16mm Holes|
570-9216 Stern Tools Countersink
Yes, this looks different than the countersinks that you are used to, but the results are much better!
This tool shears the wood rather than scraping the wood, and the results will make you wish that you had found this tool sooner.
Up to 16mm holes to one inch long