Alvin - Professional Drafting Triangles

Professional Drafting Triangles

Double-beveled edges and center lifts speed precise drafting work

Seeing your work clearly while maintaining accurate alignment. These professional triangles balance visibility with precision through molded polystyrene construction that holds its geometry under daily use. The 0.10" thickness provides structural rigidity without excessive weight, while double-beveled edges lift cleanly from the paper to prevent ink smudging and allow technical pens to follow the edge without bleeding underneath.

Double-taper cutouts in the center enable quick lifting from any angle, eliminating the fumbling that slows down repetitive work. Fingerlifts positioned along the edges provide secure grip points for repositioning without touching the working surface. Heavy-gauge polystyrene resists warping through temperature changes and repeated handling, maintaining the dimensional accuracy that architectural and engineering drawings demand. Beveled edges create the slight gap necessary for technical pen work, preventing capillary action from pulling ink under the triangle.

Architecture students working through measured drawings and professional drafters preparing construction documents both benefit from tools that combine durability with precision. The smoke tint reduces eye strain during extended sessions while maintaining clear visibility of underlying linework and dimensions.

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length
shape
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4 in.
30/60 degrees
$3.13
9%
$2.82
6 in.
30/60 degrees
$3.98
10%
$3.58
8 in.
30/60 degrees
$5.13
9%
$4.62
10 in.
30/60 degrees
$5.36
10%
$4.82
12 in.
30/60 degrees
$6.93
9%
$6.24
14 in.
30/60 degrees
$9.47
10%
$8.52
4 in.
45/90 degrees
$3.56
10%
$3.20
6 in.
45/90 degrees
$4.93
9%
$4.44
8 in.
45/90 degrees
$5.47
10%
$4.92
10 in.
45/90 degrees
$6.62
9%
$5.96
12 in.
45/90 degrees
$9.27
10%
$8.34
SKU: 21092
length: 4 in.
shape: 30/60 degrees
$2.82each
SKU: 32213
length: 6 in.
shape: 30/60 degrees
$3.58each
SKU: 35426
length: 8 in.
shape: 30/60 degrees
$4.62each
SKU: 44578
length: 10 in.
shape: 30/60 degrees
$4.82each
SKU: 46517
length: 12 in.
shape: 30/60 degrees
$6.24each
SKU: 48424
length: 14 in.
shape: 30/60 degrees
$8.52each
SKU: 63964
length: 4 in.
shape: 45/90 degrees
$3.20each
SKU: 68845
length: 6 in.
shape: 45/90 degrees
$4.44each
SKU: 70803
length: 8 in.
shape: 45/90 degrees
$4.92each
SKU: 72466
length: 10 in.
shape: 45/90 degrees
$5.96each
SKU: 86483
length: 12 in.
shape: 45/90 degrees
$8.34each
Architecture and Drafting

Architecture and Drafting Purchase Guide

Architecture and Drafting Supplies

Drafting Tools - Precision instruments including T-squares, triangles, and compasses for creating accurate technical drawings and architectural plans.

Modeling Materials - Balsa wood, basswood, and other materials for creating architectural models and prototypes.

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