Adjustable Triangle - Provides the features of a 45°/90° adjustable triangle plus those of a protractor. Angles from 0° to 90° can be drawn from the baseline with ½° accuracy.
Professionally Precise - Die-engraved graduations for high visibility and accuracy.
Aluminum Thumbscrew - The aluminum thumbscrew securely holds the selected angle and allows quick pickup and manipulation.
High Impact Acrylic - Made of high impact acrylic that is 0.100 inches thick and optically clear to eliminate parallax and allow close pencil tolerance.
A Professional's Choice - Alvin has been the professional's choice for drafting tools and drawing supplies for over half a century. Since 1950, we have brought quality and value to our customers. Our tools help bridge the gap between ideas and innovations. We are known for our wide selection of high quality tools at a fair price.
