They are good for cutting thin stock and tight'ish curves but if you want to do tight scroll work you will need a scroll saw. Blades are a fraction of the thickness for super tight turns. You can also go with spiral blades in them. 1/8 is not much good for anything beyond thin stock. I have one and never use it in part because changing and re tuning a 111 inch blade is a pain. I run a 3/8 6TPI blade most of the time. Good general purpose blade. I will use a 1/4 10TPI for fine cut work. A 1/4 inch blade will get a cut radius of 5/8 inch and is good for stock up to around 1 inch thick but best at about 1/2 inch. The 3/8 blade will get you a cut radius of around 1 1/4 inch and take wood up to around 2 1/2 inch. For resawing I use a 3/4 3TPI blade and have resawn 12 inch thick oak. A 1/8 inch blade will get you just under a 3/8 inch cut radius but they are also fragile. Easy to buckle/bend and once kink a blade, it is trash. For the cost of one 1/4 inch blade I can get a big box of scroll saw blades.