When it is really small stuff I always starting making it much to big and than sand it on a large 20" disksander, with 80 grid paper. Sometimes I use a (please let me know the english word)
If I knew what "laat me alsjeblieft het Engelse woord weten" meant, I'd say picture of a "long nosed pliers" with a red handle on a white background... nudge, nudge,😉,😉, say no more!
If your first cut is too short... Take the second cut from the longer end... LBD