Drafting Instruments

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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  • Compact Drawing Set

    Compact Drawing Set

    Alvin Drafting
    $22.50
    This compass is exactly what an artists, student, crafter, or hobbyist needs. It can be used as a basic drafting or drawing instrument for both projects and artwork.  Precisely designed, manufactured with durable materials, and Made in Germany,...
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    $22.50
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  • Compass and Divider Beginner Set

    Compass and Divider Beginner Set

    Alvin & Co.
    $13.90
    The Alvin Compass and Divider Beginner Set is a perfect package for students, crafters, and hobbyists. It contains basic drawing instruments that are commonly used in most drawing and drafting applications.Features: Includes 5 ¾-inch compass with center...
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    $13.90
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  • Computing Adjustable Triangle - Inking Edge Computing Adjustable Triangle - Inking Edge

    Computing Adjustable Triangle - Inking Edge

    Alvin Drafting
    $20.40 - $33.75

    (3)

    The Alvin Drafting Computing Adjustable Triangles are ideal for calculating length and distance in classrooms and professional applications, this tool features an optically clear acrylic body for easier and more accurate measuring. The thumbscrew lock...
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    $20.40 - $33.75
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  • Graduated Beam Compass Graduated Beam Compass

    Graduated Beam Compass

    Alvin Drafting
    $50.30

    (6)

    The Alvin Beam Compass Comes with two graduated beam bars and includes spare leads and needlepoint, is also complete with interchangeable ruling pen, pencil, and divider legs. This beam compass is conveniently packaged and comes in a hard, see-through...
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    $50.30
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  • Math/Geometry School Kit

    Math/Geometry School Kit

    Staedtler
    $8.90

    (1)

    8 essential Staedtler tools contained in a flip-open storage box.Set Includes: CompassAutomatic/Mechanical Pencil6" Protractor6" Ruler 30°/60° triangle 45°/90° triangle Spare Lead Premium quality eraserPlastic Storage Case
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    $8.90
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  • Maverick Bow Compass Drawing Set

    Maverick Bow Compass Drawing Set

    Alvin & Co.
    $31.80
    Drawing set includes 2 compasses, divider, pencil, pointer, and replacement lead.Features: 6" bow compass with center wheel, straight leg design for pencil drafting4" bow compass with center wheel design for pencil drafting5-1/2" gearhead divider with...
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    $31.80
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  • Multiple Curve Template

    Multiple Curve Template

    Timely Templates
    $7.70

    (1)

    Contains 10 sizes of two basic curves 20 in all. Sizes are labeled. Size: 63/8" x 9-7/8" x .020".
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  • Needle Point - 12/Pack

    Needle Point - 12/Pack

    Alvin Drafting
    $7.70

    (3)

    Chrome finish steel. Packaged and sold in tubes of 12.One end pointed the other end blunt. For No. 891 and No. 893.25mm long x 2mm diameter
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    $7.70
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  • Para-Liner Deluxe Parallel Straightedges Para-Liner Deluxe Parallel Straightedges

    Para-Liner Deluxe Parallel Straightedges

    Alvin Drafting
    $173.50 - $277.80

    (9)

    A deluxe version of the popular Alvin Paral-Liner series, this straightedge features a comfort grip bar for precise control of movement. Quick and detailed sketching is facilitated by retractable rollers that secure the blade for accurate drawing. Smooth...
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  • Pencil Leg For Beam Compass

    Pencil Leg For Beam Compass

    Pacific Arc
    $2.40
    The Pencil Leg for beam compasses is a useful compass replacement part. It is durable and long-lasting with its metal material. It includes one compass pencil leg that is compatible with all Alvin and Pacific Arc beam compasses.
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    $2.40
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  • Plain Flexible Curves Plain Flexible Curves

    Plain Flexible Curves

    Pacific Arc
    $6.70 - $14.30
    BulletsFeatures: Plain sizes: 12", 16", 18", 24", 30", 36Inking edge is compatible with any writing utensil.Completely straighten or bend into whatever shape needed.DescriptionFlexible Curves offer professionals the flexibility to create an infinite...
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  • Plastic Math Set Plastic Math Set

    Plastic Math Set

    Staedtler
    $2.60

    (2)

    Stay prepared for math class with this essential 4-piece set, which includes a 6-inch ruler, a 4-inch protractor, a 45-degree triangle, and a 30/60-degree triangle. The transparent design of the pieces allows items to show through for enhanced precision...
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    $2.60
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  • Professional Adjustable Triangle - Inking Edge Professional Adjustable Triangle - Inking Edge

    Professional Adjustable Triangle - Inking Edge

    Pacific Arc
    $18.60 - $27.30

    (2)

    Professional-quality adjustable triangle with inking edges.Features: 8", 10" or 12" adjustable triangleInking edge is compatible with any writing utensilMarked with rise in tangent, seconds, and degreesClear Acrylic
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    $18.60 - $27.30
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  • Professional Adjustable Triangles - Straight Edge

    Professional Adjustable Triangles - Straight Edge

    Staedtler
    $26.35 - $43.75

    (6)

    Clear acrylic with smooth edges. Protractor section is graduated in 1/2 degree increments from 0 to 90 degrees. Available in even sizes from 8" to 12". Features: .118" thick clear acrylic prevents warping and provides maximum stiffnessMagnifier...
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  • Professional Flexible Curve

    Professional Flexible Curve

    Pickett
    $6.95 - $12.25
    The Pickett Professional Flexible Curve is used to measure and draw irregular curves.Features: Create irregular curvesContains inking edge for easy markingGreen colorMade of durable plastic and easy to useMade in Japan
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  • Professional French Curves Professional French Curves

    Professional French Curves

    Pacific Arc
    $2.60 - $9.20

    (1)

    Made from pure clear acrylic to ensure their long life and their value. We proudly carry a full line of professional French/irregular curves, all of which are individually poly-wrapped.Features: Straight edgeAvailable in various sizesDurable acrylic...
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    $2.60 - $9.20
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  • Professional Parallel Bars Professional Parallel Bars

    Professional Parallel Bars

    Pacific Arc
    $154.80 - $218.50

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    The Pacific Arc Straightedge Parallel Bars are perfect for drafting, engineering and construction applications.Features: Available in 4 lengths: 30", 36", 42" or 48"Professional quality, top-mounted barRigid phenolic construction with a black satin...
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    $154.80 - $218.50
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  • Quickbow Compass Quickbow Compass

    Quickbow Compass

    Staedtler
    $31.60

    (1)

    This Staedtler quick-setting compass features a convenient push-button mechanism and center wheel, allowing for easy adjustments while drawing. The set includes a universal adapter that accommodates various writing instruments, along with hinged lead and...
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    $31.60
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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 |