24", 38", 50" Anodized Aluminum Straight Edge Tools with Precision Edge, Check Straightness On Metal Surface Tops & Machinery, Layout Tool for Marking and Scribing Lines

This things are super well built and are flat as heck - because well thats their job. I have used this to check many of my saws for alignment, used it setting up a new router table, and also when doing some flooring. The are very heavy duty, and they also come with nice protective covers on all the end.

Very happy with them. They are aluminum, and perfectly fine for what I need them for (woodworking). I tested the straight edges against each other (I have no other references), and they appeared dead flat. Well packaged, and arrived undamaged. They even come with flexible plastic end caps to keep them protected when not in use.

All 3 pieces showed up quickly and were perfect, straight and true. Well packaged.

Solid construction and heavy enough to stay in place easily, but not heavy to the point of being unwieldy. Straight enough that I was able to make a jig to pseudo plane boards with a table saw. Can’t ask for much more from a tool so simple.

The bottoms are flat enough but do show tool marks from manufacturing. So not to the level of machinists, but good enough for woodworking which is what it's advertised for.

These are incredibly accurate for the money. I found that these only have a variance of around 1/1000th inch over their length. Plenty good enough for my needs (setting up table saw and jointer infeed/outfeed tables).

Yeah, not really much else to say. Very sturdy, I used it to square up my jointer and planner and table saw and all my cuts come out perfect because of it.

Lightweight, clean, simple, and a true straight edge