Shinwa H101-C 300 mm Rigid "Zero Glare" Metric Machinist Ruler/Rule Scale .5 mm & mm Markings

The Shinwa H101-C 300 mm Machinist Ruler is a top-tier tool for anyone requiring high precision, especially in 3D printing, woodworking, or metalworking. It stands out from "big box store" options due to its rigid build and specialized finish. What I liked: "Zero Glare" Finish: The satin chrome finish drastically reduces reflections. While not literally "zero" reflection, it is much easier to read under bright shop lights compared to shiny stainless steel. Extreme Accuracy: It conforms to the Japanese Industrial Standard (JIS) B 7516 Grade 1, which is the benchmark for professional-grade measuring tools. Dual-Sided Markings: One side features mm and 0.5 mm increments, while the reverse often includes a convenient metric conversion table. Built for Longevity: The ruler is hardened and tempered stainless steel, making it highly resistant to bending, corrosion, and wear. Legible Etching: The markings are precision photo-etched and black-filled, so they won't rub off or fade over time like printed scales. Pro Tip: One end of this ruler is ground flat and straight, allowing for dead-stop measurements from an edge, while the other end is rounded with a hanging hole for easy storage. If you are tired of squinting at flimsy, reflective rulers, this is a "buy it once" upgrade for your workshop.

Excellent. The lines are so much easier to follow than the rulers that have micro millimeter markings. It is an excellent length and allows more accurate lining up across the page.

Well made, precision, easy to read scales. I wouldn't call it "zero glare," though. Like any metal surface, it will reflect light hitting it at an angle. But it's relatively low reflectivity, so it doesn't generally interfere with reading the scale. A good, useful too.

Impeccable quality. Great non-reflective finish, clear markings. I will probably order different sizes from this company. Helpful when you do 3D printing. One indicated his was warped, likely due to shipping. Its just in a vinyl pouch, and mine arrived with a 3D filament spool together in a paper sack.

Easy to read numbering and gradiations, quality steel.

Nice and sturdy. Measurement starts right from the edge, so it is good for precision measurements where the ruler has to butt up against the object.... but honestly... why round the one end? How is that useful? Why not allow us to measure from either end? You could have flattened the round end and hand inches and mm... but you didn't... why? Because you wanted to sell us two rulers instead of one? I really like the durability of this thing, but I had to remove a star for that blasted, rounded end. It is just irritating.

Nice heavy duty ruler with no offset allowing measurements from the end of the ruler.

I measured things as part of my jobs for my whole life (too many years to say). Mostly used ft. inches. and down to less than one ten thousandth of an inch. I never had any affection for the metric system but have recently been laying out hole patters in MM's to be drilled on a drill press. I got so sick of multiplying by .03937 that I broke down and bought my first metric scale. Now I just use the metric number its much easier. In precision work the conversions will continue as machinery is still in imperial measurements but I am so glad to have bought this. Its easy to read and good quality.

Simplemente excelente. Las divisiones se ve de forma muy clara

This is what you want for a precision ruler, 1mm graduation on one side, 0.5mm on the other. Crisp, high contrast lines which are easy to read ( Using a short, long, long, short segmentation between the 5mm markers). The finish on the zero end is a bit rough and could do with a finer polish, but it doesn't impact the overall usability. Perfect for pencil or knife markings, without grates that cut the skin or scratch your workpiece ( the zero-end corners are sharp though) Highly recommended for discerning home-craftspeople and probably pros as well.

Excellent Rules 💯