Use 30° and 60° for inclined construction lines and isometric-axis layout; use the right angle for perpendiculars. Keep a reference edge supported against your T-square or another straight guide.
Choose geometry first, then an available nominal size. The exact physical edge represented by that nominal size, template-hole count and diameters are not documented for these selected SKUs. If a specific circle diameter or fit is essential, request the exact-SKU specification before purchase.
Two geometries, different drawing lines
30° / 60° / 90°
Use the 30° or 60° relationship for inclined construction and isometric-axis directions. Register the appropriate reference edge against a straight guide; rotate the triangle to present the angle your line requires.
Use either equal 45° angle for diagonal and square-layout constructions, and the 90° corner for perpendiculars. Add a 30°/60°/90° triangle only if the work calls for those different angles.
Original angle schematics—not actual product outlines, measured photographs, template-hole maps or nominal-size definitions. Hole diameters/count, exact referenced sizing edge, width and thickness must be confirmed from the selected SKU’s record. Do not infer them from these drawings.
Build a drafting combination
A registered straight line, plus the angles you use
A T-square establishes the board-edge reference. A triangle rests against its blade to guide perpendiculars and the triangle’s stated angles. Add the second geometry only if your drawing calls for it.
Individually sold tools, not a manufacturer-prepacked kit. A drawing board, paper, pencil and fasteners are not included. Confirm each selection below before adding; changing a size never adds anything automatically.
Shipping depends on the full cart after discounts and destination. A longer T-square can use an oversize profile; combining profiles can add charges. Do not assume a standard free-shipping threshold covers oversize or freight items. Estimate this actual cart before checkout.
