I don't turn slimline pens very often as I don't feel they show of enough of the wood grain and pattern but this is just my opinion not that there's anything wrong with them its just my preference however I do use them in my wood collection for the more bland woods but that's just me wood type from left to right are Ash, Sandlewood,Sweet chestnut, Elm, Ooba, Laburnum, Oak, White Hickory, Butternut