Taytools468303 Compact Adjustable Trammel Head Set Beam Compass, Pencil Holders, Hardened Points

This trammel is simple to use, a simple, functional design and is priced very nicely. I use the instrument to do measurements and layout when repairing old Autoharps that have surfaces that preclude using direct measurements. You can’t just lay a tape measure on it. I am delighted.Ditto this time. This was my second set.

Good for small projects. Used it to make 18 inch circle on plywood

You'll have to provide the "beam", but just a simple piece of hardwood worked for me.

PENCIL HOLDER NEEDS IMPROVING

I love these points. I make curved and round parts often. It was simple to enlarge opening, I prefer pentel clicky pencils to save time and frustration sharpening.

These are poor quality trammel points. I can’t get the pencil to hold tight without moving. I tightened it down as best as I can and have tried using different types of pencils. Regardless of round or hexagonal, they don’t hold. Find a different brand as these are not accurate due to pencil not remaining snug.

This product is sturdy and well finished and should last a lifetime. It can do everything that more expensive tools can do and do them just as well as the others.

Too small to fit a yardstick. I thought that was the point