Center Finder & Symmetry Checker - Jewelry Making Tool 2mmShells - 4Top/Bottom Layers -

2mmShells - 4Top/Bottom Layers - 4Infill - 20%Supports - NoneThe threads for this are printed but I suggest running a 1/4 20 screw throw the top and out the bottom side to make sure all the threads are cut right

Bail 1 Size Template Sharpe & Flat Points: 15mm 20mm 25mm 30mm

6mm 8mm 10mm 15mm 20mm 25mm 30mm

Here is a video I made about this tool:

Center Finder & Symmetry Checker - Jewelry Making Tool 2mmShells - 4Top/Bottom Layers -This will make finding the center of a disc or square for drilling or design work quick and easy. Use the grid to make or see if your design symmetric. There is also a 90mm ruler on the bottom edge for quick measurements.