Best Starrett Protractors in 2026

⭕【ACCURATE】：Features easy-to-read precision laser engraved scales, protractor allows direct angle reading to the miter saw. Perfect for crown molding, trim work, and a variety of other carpentry applications.

⭕【“O” BODY DESIGN】：Saker Miter Saw Protractor is of “O” shape design during operation and ensures smooth & precise read on inside/outside corners, Crafted from precision CNC-machined aluminum alloy.

⭕【EASY TO CARRY 】：Saker Miter Saw Protractor is made of lightweight aluminum alloy, which has great corrosion and wear resistance, extending the lifespan. Also, its small size and lightweight material makes it easy to carry.

Mr. Pen semicircular 6-inch protractors 180 degrees come in a 3-pack of assorted colors for an easy class set.

These protractors are made of quality plastic material. These lightweight and easy-to-use tools are perfect for helping little ones measure and draw straight lines.

Mr. Pen protractor is an excellent tool for measuring angles up to 180 degrees. It features a convenient ruler at its base.

Measuring range: protractor measures 0 to 180 degrees left to right and right to left; Protractor with inch and centimeter marks makes measuring easy

2 Pack protractors: practical quantity, you can leave one at home and put the other at school or office; Appropriate size to use for geometry drawing and math class

Size and material: the size of the plastic protractor is 6 inch, color is clear; With hollow center, the student protractor is easy to grip

Material: plastic; Color: clear

2 Pieces Protractors, 6 inch and 4 inch

Protractor measures 0 to 180 degrees left to right and right to left

ACCURATE - Crafted from CNC-machined Anodized Aluminum Alloy Steel; Features easy-to-read precision laser engraved scales

DESIGN - Internal Teflon O-ring mechanism swivels during operation and ensures smooth & precise read on inside/outside corners

FORGET ABOUT THE GUESSWORK - Two scales transfer your work angle directly to the miter saw for an accurate Miter cut, and Single cut

7-Inch miter saw protractor

Allows direct transfer of the work angle to the miter saw in 3 steps with no calculations

Durable 1/4-inch thick aluminum alloy; Teflon O-ring for smooth, precise operation

Professional protractor features an open center and accurate 6-Inch ruler across the base

Sharply defined raised graduations are black-bonded in crystal-clear plastic

Plastic material, clear color, Length: 6-Inch

6-Inch Protractor (3 Pack)

Made With Transparent Clear Plastic

Easy-To-Read Inch And Centimeter

For use with UTM, MGRS, USNG or other metric based coordinate systems.

For use on maps with scales of: 1:24,000 1:25,000 1:50,000 1:10,000 1:100,000 1:250,000 1:500,000

Compass Rose in both Degrees and Mils

VERSATILITY: The Bosch GAM 220 MF provides four tools in one including an angle finder, miter calculator, protractor and level.

MEMORY: This angle finder provides angle memory, to provide the same angle measurement in different areas of the jobsite.

DISPLAY: Easy-to-read illuminated, rotating flip display. The miter cut calculation has an input measurement from 0-220 degrees

LARGE LED SCREEN: This digital ruler makes precise, easy, and fast measurements. It has a large, easy-to-read display with an accuracy of 0.3 degrees and a full 360-degree range, allowing it to measure interior, exterior, and reverse angles.

LOCK IT AND REVERSE IT: Place the digital angle gauge where you need to measure, lock it, and make your cut. It will automatically show the reverse angle, and the display has a hold function to stop the movement for accuracy.

MEASURES 360-DEGREES: Our carpenter tools are perfect for finding angles in tight spots and ideal for crown moldings, custom cuts, and other overhead work. It can be zeroed at any point in the swing, and the display can be inverted for easy reading.

Swing arm protractor rotates 180°, helps accurately draw and measure angles. Measure angles from left to right or right to left

Easy-to-read inch and centimeter marks. 6" & 10cm ruler integrated at the bottom

Made of translucent material to easily see what you are measuring

【Patented measuring technology】Ruler and protractor combination for easy measuring inside and outside angles. 【Digital Display】Easy to read.

【Durable Rulers】Well-made stainless steel rulers and laser etched measurements offer clear reading and years' usage.

【High Accuracy】Accuracy of this protractor is ±0.3 degree. It is a good choice for most projects like woodworking, crown molding and daily use. Folded length: about 7.5 inch/220mm.Total length 400mm.

【Great Repeatability and Consistency】This angle gauge is designed with accuracy of ± 0.2° and the resolution is 0.1°. The measuring range: 0 to 360° (4*90°). Display unit: DEGREE only. It provides convenience in woodworking, construction, machinery, telecommunications, automobile etc. It is pre-calibrated in factory.

【Strong Aluminum Framework&Magnetic Flat Base】The digital angle gauge applied sturdy aluminum alloy instead of plastic for the main framework. It’ll provide years’ usage.【Two Measuring Mode】①Checking the true level. ②Checking the relative angle between two surfaces.

【Lower Power Reversible LCD Display with ERROR indicator】 The Digital Angle Gauge has a large LCD display with backlight, which only needs one battery for providing accurate, quick and clear measurements and even you can easily read in dark environment. If the digital angle gauge is used in an incorrect position (e.g. tilts diagonally over 30 degree), display will tell ERROR to make sure that use is getting the accurate measurement.

【3 In 1 Protractor, Angle Finder and Level】The Measuring Tool with 4×90°(0-360°) Measuring Range, is Designed for Setting or Checking Relative Angles between Surfaces, Also Working as True Digital Level for Tight Spots

【Backlit LCD Display】Values can be Clearly and Easily Read on the LCD Display, Press MODE button to Convert Bevels in Degrees, Percent Slope, Radian (IN/FT, mm/m), Calibrate the Angle Gauge to Any Reference Surface by Pressing the ON/OFF and HOLD button (See the User Manual for Details)

【High Accuracy】Nepteck Protractor Provides Precise Measurements, Whose Accuracy is ± 0.2 Degrees, Resolution Up to ±0.01 Degrees

【Upgraded Measure Range】Measure range: 2*180 degree. Accuracy: 0.2°. Resolution: 0.1°. Measures in DEGREE only.

【New Function】GemRed XVB angle gauge has a HOLD button to freeze the display for easier reading.

【Aluminum Framework & V-groove Magnetic Base】The digital angle gauge applied sturdy aluminum alloy instead of plastic for the main framework. The bottom is v-shape and built in strong magnets for attaching on pipe or conduit.

VERSATILE DESIGN - Create precise angles and circles with the Helix Angle and Circle Maker.

INTEGRATED CIRCLE TEMPLATES - Convenient circle measurements with integrated templates.

360-DEGREE MEASUREMENTS - Accurately measure angles in 360 degrees.

Small digital angle finder case: Digital angle gauge storage box design for Klein tools 935DAG digital electronic level and angle gauge. The carrying bag for digital angle gauge and level is convenient for indoor or outdoor measures and sets angles. Good gifts for klein electrician tools are suitable for home storage and travel. External size: 3.15*3.15*1.96 inches.Device and accessories are not included.

Durable hard case for klein level: The digital level case is made of high-quality durable EVA, splash-proof, shock-proof, dust-proof, soft inner lining provides enough protection for Klein to prevent scratches and abrasion, and ensure electricians level to keep in good condition when traveling or outdoors.

All round protection angle finder tool box: The digital protractor storage case with internal band design ensures that you can easily take out or put in the internal level tool when traveling( Just pull up the band gently). Protect for klein angle safety and long time use. The small case for klein angle allows you to check relative angles anytime and anywhere without any worries.

Size and material: 6 Inch protractor made of plastic, inch marks is up to 6 inch, centimeter marks is up to 15 cm.

Measuring range: Range of 0 to 180 degrees, and clear color allow you see the words, letters, figures on page through the protractor, it makes measuring easy.

Geat value: This set includes two 6 Inch(15 cm) protractor, one can use in home, the another use in office.

Plastic protractor set: 24 pack high quality 6 inches clear protractors are perfect for measure, student work, painting, technical drawing, graphing of engineering.

Measure range: range of 0 to 180 degrees, the minimum accuracy of the angle is 1 degree and each 10 degrees have a clear line to distinguish.

Easy to use: math protractor features an open center and accurate 6 inches ruler across the base which with inch and centimeter marks makes measuring easier.

HIGH QUALITY PLASTIC- This full circle protractor is made from high quality acrylic for a sturdy but beautiful protractor. The durability alone will make any situation a breeze. Its small size is perfect for storing in a pocket or bag.

EASY TO READ GRADUATIONS- The etched on graduations make it easy to read for any measurement. A full 360 degrees reading two different directions makes it easy to create the perfect curve. Easily make perfect circles or get an exact curve for any project.

ACCURATE AND LONG LASTING PRINTS- The easy to read and durable graduations are etched on to provide the best looking information. Accurate down to a single degree, never make an incorrect measurement again. This clear protractor is a must have for any engineer, architect, drafter, or student.

Dimensions: 20 in. Outside Diameter x 3-1/2 in. Inside Diameter x 1-1/2 in. Projection x 6-1/2 in. Canopy

Lightweight for quick and easy hassle-free installation

Clear deep relief, sharp lines and a truly unique touch

7 Pieces math set: 7 in 1 geometry tool contains a Compassa ,6 inch/ 15 cm straight ruler, a 4 inch protractor,a 6 inch protractor, 3 x triangle ruler (45 and 60 degree)

Mechanical pencil for compass with 2 mm pencil lead, used for drawing circle or circular.Made from Stainless Steel, durable and easy carry.

Transparent plastic protractor and measurement ruler: transparent ruler and clear color makes you measure easier.; straight and triangle rulers with inch and metric scales on them,

【Large LCD Display & High Precision】 Preciva digital protractor is equipped with a large LCD display for easy reading; Measuring Range: 0~999.9°; Accuracy ±0.3°; Resolution 0.1°.

【Locking Function】Convenient locking screw-by pressing the screw, the ruler can be kept at any angle.For maintain its accuracy and read it easily, Preciva angle finder could be locked at any angle.

【2 in 1 Digital Protractor】Digital stainless steel ruler and angle finder combo makes precise measurements.the hinge mechanism on the angle rule allows complete 360-degree measurement of internal and reverse angles; The protractor combines standard and metric scale scales.Relative and absolute angle measurement.

【Digital Angle Finder Protractor】 with High Accuracy, Delicate Design and Modern Appearance, An Interior Designer Should Have!

【High Accuracy】 Angle Range is 0-225°, Measuring precision: ±0.5°, Increase/Decrease Angle: 0.1°

【Data Hold】If You Want to Use Data Holding Function, You Need to Press the HOLD Button in Red rather than Twist the Knob. (The Knob is Just for Loosening and Tightening. It Can't Hold the Angle Firm Completely!)

28 Pack plastic protractors: made of clear plastic with smooth surface, durable; The black marking is not easy to abrade and adequate quantity can serve for a long time

Clear protractor: transparent color allow you to see the words, letters, figures through the tool, you can get the information accurately and quickly

Proper size: the bottom side length is 10 cm, 4 inch proper size for carrying conveniently and make it easy to put on your books, notebooks and pencil case

EVALUATE RANGE OF MOTION: ASA TECHMED's complete set of goniometers is everything you need to evaluate range of motion. Ideal for physical therapists, home use, and students who want quality professional materials and effective results. Our Goniometers offer 360 degrees of coverage in 1-degree increments to ensure ISOM (International Standards of Measurement) accuracy. Easily track progress without breaking the bank with our high quality professional PT Goniometers.

USER FRIENDLY GONIOMETER SET: The clear plastic permits observation of the joint's axis of motion and range of motion. Lay the device directly on a limb or joint to make an observation. Measurements in inches and centimeters are on the arms of the gonoimeters and are easy to read.

MEASURE WITH CONFIDENCE: Our set consists of one of each: 360 Degree Goniometer 6 inch + 360 Degree Goniometer 8 inch + 360 Degree Goniometer 12 inch + 180 degree Goniometer 6 inch + Finger Goniometer 6 inch + Spinal Goniometer 8". The Asatechmed Goniometers assist with determining the range of motion for a joint. Gauge the progress of recovery after injury buy using a goniometer to measure this range of motion and determine improvements.

DURABILITY - Stronger material and thicker then standard issue protractors. Does not become floppy or wear out easily.

MULTI SCALE - For with map scales: 1:10,000 1:25,000 1:50,000 1:100,000 1:250,000

PROFESSIONAL USE - Inner protractor is marked in degrees and outer protractor is in mils

【Digital Angle Finder Gauge】Large digital LCD display with white backlight. You can easily read precise measurements with its bright backlit display. Waterproof IP54.

【Magnetic Base】With Powerful Magnets in the base, the Magnetic Angle Level Finder can attach to Any Iron Surface. Flat bottom, easy to clean the attachment on the Inclinometer after use.

【Accurate Measurements】This Angle Level Finder provides Fast and Accurate measurements. Wide Measuring Range of 4x90˚ (0 ~ 360˚) with ± 0.1 Repeatability. Displays Bevels in Degrees, Percent Slope.

Find ANY SAW SETTINGS with absolutely NO MATH, guessing, mistakes or waste.

Works on crown molding miters, double miters, single miters and inside or outside corners

Perfect for Trim Carpentry, Flooring, Handrails, Spindles, Decks & much more!