Lance Aluminum Triangles, Drafting Triangles, Drawing TrianglesExcellent aluminum triangles for commercial artists, draftsmen, and for doing hobbies and crafts of all kinds. Calibrated in 16ths on one edge, one side. Each triangle has 20 or 26 circular template holes, depending on its size. Hole diameters range from 1/32" to 1-3/8". Available in several popular sizes. 45°/90° and 30°/60°. | |||
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