Shop professional drafting instruments including drafting triangles, compasses, dividers, beam compasses, proportional dividers, pantographs, irregular curves, and precision geometry tools for technical drawing, engineering, architecture, design, and STEM education applications.
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Graduated Beam Compass
Alvin Drafting$50.30The 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... -
Introductory 6" Bow Compass
Alvin Drafting$17.40Introductory 6" bow compass.Features: Smooth center wheel adjustment. Matte silver zinc legs .Durable fiberglass head and leg parts.Double break-leg design. Includes an extra needle point for use as a divider, a universal adapter to hold pencils, fine... -
Masterbow Compass
Staedtler$16.10Precision metal compass with spring-bow head and center wheel. The nickel finish resists rust and stains. Maximum circle drawn: 10 3/4". Overall compass length: 6 1/8". Spare parts tube includes one piece of lead.Made in Germany -
Math/Geometry School Kit
Staedtler$8.908 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 -
Maverick Bow Compass Drawing Set
Alvin & Co.$31.80Drawing 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... -
Multiple Curve Template
Timely Templates$7.70Contains 10 sizes of two basic curves 20 in all. Sizes are labeled. Size: 63/8" x 9-7/8" x .020". -
Needle Point - 12/Pack
Alvin Drafting$7.70Chrome 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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Para-Liner Deluxe Parallel Straightedges
Alvin Drafting$173.50 - $277.80A 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... -
Pencil Leg For Beam Compass
Pacific Arc$2.40The 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. -
Plain Flexible Curves
Pacific Arc$6.70 - $14.30BulletsFeatures: 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... -
Plastic Math Set
Staedtler$2.60Stay 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... -
Professional Adjustable Triangle - Inking Edge
Pacific Arc$18.60 - $27.30Professional-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 -
Professional Adjustable Triangles - Straight Edge
Staedtler$26.35 - $43.75Clear 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... -
Professional Flexible Curve
Pickett$6.95 - $12.25The 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 -
Professional French Curves
Pacific Arc$2.60 - $9.20Made 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... -
Professional Parallel Bars
Pacific Arc$154.80 - $218.50The 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... -
Quickbow Compass
Staedtler$31.60This 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... -
Safety Compass & Protractor Set
Art Alternatives$3.90This 2-piece set is ideal for students, professionals and DIY creatives. The compass allows you to draw accurate angles and circles, and the 180° protractor is divided into one degree increments with both inch and metric markings... -
Scale Divider
Derwent$14.40The scale divider stands as an essential tool for artists, offering unparalleled value in achieving accurate proportions in their work. Rooted in tradition dating back to the great artists of the 16th Century, this tool effortlessly transfers...
Types of Drafting Instruments
Drafting instruments are precision drawing tools used to create accurate lines, angles, curves, circles, proportional layouts, and technical drawings. These instruments remain essential for engineering, architecture, industrial design, STEM education, geometry instruction, fabrication layouts, and manual drafting workflows where precision and repeatability are critical.
- Drafting Triangles: Create accurate verticals, angles, and parallel lines for technical drawing and layout work
- Adjustable Triangles: Support variable-angle drafting, engineering layouts, and precision drawing applications
- Drawing Compasses: Draw precise circles and arcs for drafting, geometry, engineering, and design work
- Beam Compasses: Create large-radius circles and oversized arcs used in architectural and engineering layouts
- Dividers: Transfer measurements, divide spaces, and step off equal distances in technical drawings and layouts
- Equal Spacing & Proportional Dividers: Scale drawings, enlarge artwork, reduce layouts, and maintain proportional measurements
- Pantographs: Enlarge, reduce, and duplicate drawings while maintaining accurate proportions and geometry
- Irregular Curves: Create smooth non-circular curves, contours, and transitions for drafting and design applications
- Math & Geometry Instrument Sets: Combine compasses, rulers, dividers, protractors, and geometry tools for classroom and technical use
- Compass Parts & Accessories: Maintain drafting instruments with replacement leads, points, adapters, and extension bars
Why Drafting Instruments Still Matter
Even in modern CAD and digital design environments, drafting instruments remain valuable for concept sketching, classroom instruction, field work, geometry education, fabrication planning, overlays, and manual drafting workflows. Many architects, engineers, designers, and students still rely on traditional drafting instruments for learning core drafting principles and developing precise technical drawing skills.
Professional drafting instruments are designed for repeatable accuracy, smooth operation, and long-term reliability. High-quality compasses, triangles, dividers, and proportional tools help improve drawing precision while reducing layout errors in technical and engineering applications.
Choosing the Right Drafting Instruments
When selecting drafting instruments, consider the type of drawing work being performed, the scale of the project, and the level of precision required. Geometry and classroom sets work well for education and general drafting, while professional compasses, beam compasses, proportional dividers, and pantographs support more advanced engineering, fabrication, and design applications.
Frequently Asked Questions
What are drafting instruments?
Drafting instruments are precision drawing tools used to create accurate lines, circles, angles, curves, and scaled technical drawings for engineering, architecture, design, and geometry applications.
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.
What drafting instruments do architects and engineers use?
Common drafting instruments include compasses, drafting triangles, dividers, proportional dividers, scales, irregular curves, and beam compasses.
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 | Shop Drafting Parallel Bars
