Our each is a package of (2) steel tech rulers. One is 6” x 1/32” for the first 2-1/2” then 1/64” for the next 1/2” then 1/16” for the last 3”. The other is 150mm x 0.5mm. Both have sliding markers/pocket clips, and both have mm:inch tables on the reverse side. You’ll need excellent eyesight.

From Helix®, this 18" long aluminum U.S. Standard triangular architects' ruler/scale has color-coded facings and is divided into 3. 1-1/2, 1, 3/4, 3/8, 3/16, 3/32, 1/2, 1/4 and 1/8 inch per foot. Yes, you can use it even if you're not an architect.

Says so right on the packaging. Measures (pun intended) 18” long x 1-1/2” wide. Has 1/32” increments for the first inch, then 1/16” on one edge and 0-45cm in 1mm increments on the other. Made in England of blue-tinted translucent plastic. (There is no legal penalty for using it at home or in a school.)

Accept no amateur rulers. But seriously, this 24-inch professional steel ruler from Helix® is cork-backed, and marked in 1/32” increments for the first two inches, 1/64” for the third, and 1/16” for the rest. Also shows 60cm x 0.5mm for the first 10cm, and 1mm for the remainder. Markings are etched, so they won’t rub off with use.

Good advice for us all, and true of this clear, flexible shatter-resistant plastic ruler from Helix®. Measures 12” in 1/16” (and 30cm in 1mm increments).

There are just two, actually, and one of them is a pencil, on a drafting compass. Sometimes it’s better to draw circles without using software, don’t you think? If so, try this one from Helix®, with 3-1/2” legs with (2) 2mm dia x 15mm long leads, a small sharpener, folding needle guard (for the other point) and a 3/8” ID pen/pencil holder with a thumbscrew lock. Made in France, merci.

This 18-inch x 1-1/2” wide clear acrylic office ruler from Helix® is marked as an office ruler, and we don’t know why, but we like it. Measures in 1/16” increments, and all the way up to 460mm on the other side. Edges are cut at 45 degrees for your non-smearing, line-drawing pleasure.