huahuo Round Center Finder, 200mm Acrylic Center Finder Tool with Good Light Transmission and High Definition, Woodworking Compass for Lathe and Wood

We use for finding exact centre of ceramic plates really useful

Need hammer and nail

Makes life much easier finding centres

This is just the job for finding the centre or cutting bowl blanks. It's sturdy enough and does everything I hoped it would do, but the item I received, though it came bubble-wrapped, was scratched in a couple of places. I suppose it will get a few more after a couple of uses, but because of that I've deducted one star.

It has 7 holes with 1 cm spacing repeated 3 times. Only one row is needed the other 2 rows are redundant. Thus you can only use it for circles of 2, 3, 4, 5, 6, 7, 8 and 10 cm radius. 9 cm is not provided. Centre finding rough logs can only be done accurately for one of those radii. What a pity there aren't more circles marked on it at other radii. What a pity there are no rows of holes with different spacing so circles of different radii can be marked out or drawn. I will drill more holes in it myself. The holes are too large for a snug fit with propelling pencils and ball point pens. So it's not as useful as it could easily be. To use it to draw circles, it needs a piviot. The nice one shown in the photo is not supplied. I used a 2 inch round nail which had the right diameter, approxinmately 3 mm, to keep it from moving sideways while I was rotating it to draw circles. What a pity there aren't other sized holes for a snug fit with a pencil, pen, or marker pen. I wanted it to draw circles with a marker pen. In the end I used a large compass with no screw adjustment to stop it changing setting (tricky). Then I went over the faint pencil line with a marker pen. Not ideal. I will drill holes for a propelling pencil, ball point pen and a marker pen.

Gain it is what it is put it on a log or something similar even a flat piece of wood and basically work out where centre is within 200mm

good circle tool, though hard to make clean accurate circles without pinning the tool down. the plastic is cloudy and not as clear as it photographs. i scratched the surface thinking it had a protective film to be peeled off. the white measure markings are not white background / paper friendly.

Plastic Used Is Not Clear But Has A "Cloudy" Look. Holes To Scaling Grate Is A Little Off. Ok For General Work But Not Particularly Accurate