What woodworking tool do I need to smooth out narrow grooves?

Post date: 2022-01-24 12:28:09
Views: 227
I removed paint from a few doorframes, and now I'm going to sand them down and repaint. What is the best way to smooth out the grooves in the detail? I held up a pencil in this photo to show the size of the grooves (approx 1.7 mm): link

I'm sort of a basic woodworker. I've been reading about different kinds of rasps, files, and rifflers (a word that is new to me today), but nothing is exactly what I'm looking for I think. I guess I am imagining something like a metal file in the shape of a cotton swab/cotton bud.

I already bought some contour sanding pads for the job, but I'm just wondering if there is a better way of working with this - there are seven doorframes, each with multiple grooves.

BONUS QUESTION: if anyone is able to identify what the metal circle in the photo that was hidden under the paint, that would be cool too.
Number of Comments
Please click Here to read the full story.
 
Other Top and Latest Questions:
DOJ charges Southern Poverty Law Center with fraud over secret funding of extremist groups
Rep. Sheila Cherfilus-McCormick resigns, third House member to quit this month
Trump extends ceasefire in Iran, citing 'seriously fractured' Iranian government
Book: Wind and Truth (Stormlight Archive #5)
Hormuz is just a ‘dry run’ if China and U.S. go to war in the Pacific, Singapore foreign minister warns
Big Mistakes: Big Mistakes
European stocks set to open lower as Trump refuses to lift Strait of Hormuz blockade
Japan's Nikkei 225 rises to record high as Trump extends Iran ceasefire
Tim Cook turned Apple into a $4 trillion juggernaut by not trying to be Steve Jobs
Apple incoming CEO John Ternus faces a defining challenge: Fixing the company's AI strategy