Starrett 380-18 18-Inch Steel Straight Edge
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Questions & Answers
Here is a possible solution to your problem From the Starrett website, the following specifications are available The following dimensions apply to 18" The thickness of the sheet is 450mm (in). The thickness of 11/64" is The diameter is 4mm and the width is (in) The width of the 13/32" is The accuracy of the 36mm is as follows 0.0002" per foot (I use this in woodworking, so it is
You won't find it on the website, it comes rubber banded to a piece of wood. Mine arrived very well insulated and packaged.
It is not my knowledge that there is any certification.
There is no difference in the accuracy of either edge There is nothing distinguishing one edge from the other on the straightedge.
Selected User Reviews For Starrett 380-18 18-Inch Steel Straight Edge
Products from Starrett are always of the highest The extra charge is well worth it. The rails I purchased were intended to act as reference rails for my Coordinate Measuring Machine and they were much more precise than they were supposed to be. There is less than an 0000 error over a wide range of.
A slight improvement has been made here. It was mentioned that the packaging of this product was poor in some reviews. A slight improvement has been made here. My package came with a rubber band attached to a piece of wood, probably to keep it safe during The narrow faces were perfectly straight, but it was warped by 0. When I checked mine on a granite surface plate, I found the warp was 0. 0. I went in the opposite direction with "006". Even though it doesn't matter because the faces you use are straight, I still didn't expect any imperfection in a Starrett product. Still, I found it to be effective, as I could check the flatness of a cylinder block with it.
As it turned out, this was not true. Hopefully I will be using this product for many years to come.
We were thinking if Starrett had debugged the edges after grinding, it sure would have been nice. I think there's a problem with poor quality control.
However, the edged was burred and I had to remove them with a stone, but otherwise, it exists in a very flat and straight state.
Ideal for checking blocks or heads.
There are no better precision measuring tools than those from Starrett. Do not drop it or chip the edges. Handle it with care.
The quality of Starrett products can't be beat.