TOOLCOOL Circle Center Finder Tool Woodworking Centering Tool 45 Degree Angle Maker Draw Scribe Line Ruler Aluminum Alloy

I needed a device to find the centers of round object quickly and with little fuss. It is durable and solid for its purpose. The only criticism I might have is that the rule is not so easily moved but otherwise works well.

Excellent and affordable tool. My only wish was that there were built-in storage for the hex key.

Why did you pick this product vs others?: From the pictures and descriptions it appeared to be well made, and it is. The one issues is the ruler mount slot is wider than the ruler. Ruler is more flexible than I expected, wish it was ridged. Price is good for what it is.

I am so in love with this Center Finder! As a Mandala artist finding the center of a circle is essential for balanced art pieces. You can also use this for 19 plus inch Mandala circular boards using a flat ruler as an extension. It comes with flat aluminum ruler that is 12 inches long. I had another 8 inch aluminum ruler that I just placed at the end but on top of the original 12 inch ruler that it came with. That extended my ability to find center for larger boards. At time of purchase this was $17. It was an amazing value. I have found the accuracy to be spot on. I would buy this again for sure!!!

This really works but you must be measuring a true circle. Works for all size circles. very accurate

This thing works very well. I used it to find the center on hydraulic cylinder rods and for measuring rods from the center of the clevis to the end of the rod.

Sadly this is not accurate. It is off by about 2mm. I have tried to reposition the ruler because there is play between the rule and retaining screws but it is not enough to make this accurate.

Easily find the center of any piece. Good, heavy-duty quality that is accurate with the offset for marking pencil already accounted for. It is a manageable size and excellent value for the money.

Arrived two days ahead of schedule! Good solid build and feels worth the money. The ruler is marked in millimetres and inches. Increments are clear as they are engraved, not printed. It may be a little thin as over tightening the alignment grub screw can cause the ruler to buckle. Just don’t over tighten the screw - not necessary - all it needs to do is push the ruler against the centre line. The top four screws hold the ruler in place securely. Delighted with my purchase. Recommended.

My dad had given me an ancient version of this with a single contact point to base. While very useful it kept coming apart. Fast forward to buying this device and it is perfect for my wood projects. I have to fasten a dozen 4x4 to 6x6 perpendicularly for legs and this worked 100% of the time, every joint is true, and sent my dad one too!