Used one if these at a guitar building course when I visited England in 2023. Couldn't get anything like it in Australia so online ordered from Radian. Delivery was really prompt.

A brilliant plunge trimmer that leaves a smooth surface with minimum tearout even on crazy grain.

My favourite application for these are to cut hinge mortises with my palm router and a template. They are of course great for any template work where you can get away with a shallower depth of cut.

2nd radian router bit I've bought, same end result; super smooth finish and cuts like the proverbial knife through butter. Not the cheapest bits I've ever bought but comfortably the best.

Great quality bit!