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.
Good quality precision compass from Helix®. Measures 4-1/4" long and opens to a maximum of 2-1/8". Includes (3) spare 2mm leads and a spare locking wheel for leads on account of people losing them all the time.
Better than your average compass set, this beauty from Maped is 5-1/4" long with a 2mm lead plus a spare, 1mm mechanical pencil, an attachment to put your own pencil in, a small lead sharpener, sliding point guard and a clutch. Opens to a max of 5-3/4" and comes in a snap-shut case.
This draftsman's tool set (let's make that draftperson's, OK?) is from Helix®, the king of drafting stuff. Includes a 2-1/4" thumbwheel compass, an 8-1/4" technical compass, 5-1/2" extension arm, pen clamp, (2) extra set-screw threads and heads and (2) spare leads, all in a snap-shut case. We spit on CAD.
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.)
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