Good quality drafting instruments make technical drawing easier, cleaner, and more accurate. Shop drafting triangles, compasses, dividers, beam compasses, proportional dividers, irregular curves, pantographs, and other precision drafting tools used in architecture, engineering, design, STEM education, and manual drafting.
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Smoke Triangles - Inking Edge
Alvin Drafting$2.30 - $7.70The Alvin inking edge triangles are made of molded 0.10" thick polystyrene and feature a transparent non-glare smoke tint for easy visibility.Features: 30º/60º and 45º/90º trianglesAvailable in multiple sizes ranging from 4" to 14"Inking-Edge... -
Fluorescent Triangles - Straight Edge
Alvin Drafting$6.10 - $25.80The Alvin Professional Fluorescent triangle is extremely popular because the refracted light has an illuminating effect on the drawing by accentuating the triangles edge.Features: 30º/60º and 45º/90º professional fluorescent trianglesAvailable in... -
2mm HB Compass Lead - 12/tube
Alvin & Co.$2.20Each tube holds 12 leads 2mm in diameter and ¾" long. Packaged 12 leads/tube. -
Topaz Triangles - Inking Edge
Pacific Arc$3.40 - $48.35The Pacific Arc inking edge triangles are made of molded 0.08" thick acrylic and feature a transparent non-glare smoke tint for easy visibility.Features: 30º/60º and 45º/90º trianglesAvailable in multiple sizes ranging from 4" to... -
Fluorescent Triangles - Straight-Edge
Pacific Arc$3.40 - $52.25The Pacific Arc Professional Fluorescent triangle is extremely popular because the refracted light has an illuminating effect on the drawing by accentuating the triangles edge.Features: 30º/60º and 45º/90º professional fluorescent... -
2mm 2H Compass Lead - 12/tube
Alvin & Co.$2.20Each tube holds 12 leads 2mm in diameter and long. Packaged 12 leads/tube." -
Clear Acrylic Professional Triangles - Straight Edge
Pacific Arc$2.90 - $45.95The Pacific Arc Clear Professional triangles will not discolor or warp with age and handling. Features: 30º/60º and 45º/90º professional clear trianglesAcrylic that will not feather with ageAvailable in multiple sizes ranging from 4" to... -
Clear Acrylic Triangles - Straight Edge
Alvin Drafting$5.70 - $58.80The Alvin Clear Professional triangles will not discolor or warp with age and handling. Features: 30º/60º and 45º/90º professional clear trianglesAvailable in multiple sizes ranging from 4" to 24"Straight-Edge Triangles1/8" thickWill not discolor... -
Comfort Compass & Beam Set
Staedtler$35.40Precision compass with spindle guide, spring-bow head and centre wheel.Features:Solid metal compassHinged leg joint and needle shoeInterchangeable lead part with shank 4 mmInterchangeable shouldered needleMax. circle approx. 265 mm, with extension bar... -
Drafting Triangle Set
Westcott$6.45Westcott Drafting Triangle Set delivers precision and quality for technical drawing, architectural drafting, and geometric design work. This professional-grade triangle set combines durability with innovative design features, making it an essential tool... -
Jet-Bow Beam Compass Set
Alvin Drafting$65.70This versatile compass is user-friendly and perfect for artists, students, crafters, and hobbyists as a basic drafting or drawing tool for both projects and artwork. Packaged in a durable, transparent plastic case for easy portability, storage, and... -
10" Fluorescent Triangles - Inking Edge
Alvin & Co.$2.80 - $3.80BulletsFeatures: 30º/60º and 45º/90º trianglesAvailable in multiple sizes ranging from 4" to 14"Inking-Edge Triangles0.10" thickFluorescent orange color reflects light along the drawing edgeEdges are double beveled with handy finger-lifts for quick... -
3-Piece French Curves Set
Alvin & Co.$2.85Features: French curves molded of green-tinted 0.09" thick styrene plasticGreat for individual or classroom useContains French Curve sizes: 5.5", 6.5", and 12.5"Packaged in a convenient, reusable storage pouch -
4-Piece French Curve Set
Alvin Drafting$15.80Alvin Drafting French Curves are an ideal tool for drawing irregular curves and connecting lines and line segments. Use these French curves in manual drafting to draw smooth curves of varying radii.Features: Molded of smoke gray-tinted 0... -
5.25" Smoke-Grey French Curve - Inking Edge
Alvin Drafting$2.50The Alvin French Curve is perfect for drawing irregular curves and connecting line segments. Its dual inking edges ensure smudge-free, precise results with pencils or technical pens on either side. Made from 0.10" thick transparent... -
6" Basic-Bow Pencil Compass/Divider
Alvin Drafting$15.10Designed with a fiberglass ring head and pivot design for smooth, firm adjustment. Features: Accurate center wheel adjusts quickly and easily Creates circles up to 10" diameter. Built-in spindle stop prevents over-extension. Supplied with... -
6" Transparent French Curve
Alvin & Co.$2.20Professional quality hand-finished curves of 0.06" thick acrylic. Sizes given are nominal. -
Academic Transparent Triangles
Alvin Drafting$2.00 - $5.40These Academic Drafting Triangles have a double-taper cutout center for easy lifting, enhancing efficiency. Made from durable, extra-heavy acrylic, they resist discoloration and warping. Ideal for students, hobbyists, and professionals, these tools... -
Bulk-Pak 2mm (2H) Compass Leads - 144/pk
Alvin & Co.$10.40A convenient way to refill standard drawing instruments with pre-sharpened chisel points. 2mm in diameter and ¾" long. -
Paral-Liner Parallel Straightedges
Alvin Drafting$171.00 - $231.00The Alvin Drafting Paral-Liner Parallel Straightedge Bar enables precise and swift sketching with retractable rollers that lock the blade in place for precise drawing. It comes with all necessary mounting hardware and clear instructions for easy...
Professional Drafting Instruments for Technical Drawing and Precision Layout
Good drafting instruments make technical drawing easier, cleaner, and more accurate. Whether you're learning geometry, working through architecture school, creating fabrication layouts, or sketching design concepts by hand, the right tools make a noticeable difference.
This collection includes drafting triangles, compasses, dividers, beam compasses, proportional dividers, irregular curves, pantographs, and other precision drafting instruments used in architecture, engineering, design, STEM education, and manual drafting workflows.
Many drafting and design students still use these tools every day alongside CAD software. Manual drafting remains an important part of learning layout fundamentals, geometry, spacing, proportion, and technical drawing techniques.
Choosing Better Drafting Instruments
One of the most common mistakes beginners make is buying an extremely cheap compass. Low-quality compasses often slip, wobble, or lose adjustment while drawing, which quickly becomes frustrating during classroom exercises and technical layouts. Many drafting instructors recommend spending a little more on a better compass because students tend to use them constantly throughout drafting and geometry courses.
Architecture and engineering students most commonly use drafting triangles, compasses, and parallel bars during manual drafting exercises. Many drafting kits include these core tools along with scales, pencils, and drafting media needed for classroom work.
A quality parallel bar is also one of the few drafting tools many professionals keep for decades. Even as software has changed over the years, a good parallel bar still provides a fast, reliable drawing surface for sketching, layouts, and technical drawing by hand.
Still Used Alongside CAD
Even in CAD-heavy classrooms and design offices, drafting instruments are still widely used for concept sketching, geometry instruction, manual layout work, presentation drawings, fabrication planning, and learning core drafting principles. Many designers and architects still find it faster to sketch ideas by hand before moving into software.
Frequently Asked Questions
What are drafting instruments?
Drafting instruments are hand tools used for technical drawing and precision layout work. They help create accurate circles, angles, curves, spacing, and measured lines for drafting, engineering, architecture, geometry, and design applications.
What drafting instruments do architecture students use most?
Architecture students commonly use drafting triangles, compasses, and parallel bars during manual drafting exercises and technical drawing classes. Many drafting kits also include scales, pencils, and drafting paper needed for coursework.
Are drafting instruments still used today?
Yes. Drafting instruments are still widely used for STEM education, concept sketching, geometry instruction, fabrication layouts, overlays, and manual drafting workflows.
Complete Your Drafting Workspace
Pair drafting instruments with related drafting tools and drawing supplies to create a complete technical drawing and design workspace.
Shop Drafting Templates | Shop Drafting Pencils & Leads | Shop Ruling & Measuring Tools | Shop Technical Pens | Shop Drafting Paper | Shop Drafting Boards |
