Mini-MAG Protractor, 360°

Fowler 54-422-450-1 Mini-MAG Protractor, 360° Maximum Measurement, 0.05° Repeatability

Product Description
The Fowler Mini-MAG Protractor 54-422-450-1 is an electronic protractor with 360° digital display of any angle and embedded magnets on the sides and bottom with 5 lb. pull. The display automatically inverts for reading ease. The protractor has a measuring range of 360° (4 x 90°) and a hold feature that freezes the displayed reading while retaining the original zero reference information. The protractor can also be set to read absolute zero, for use as a leveling device. It has a resolution of .05° and an accuracy of + or - .2°.


Measuring range 360° (4 x 90°)

Resolution .05°

Accuracy + or - .2°

Repeatability .05°

Power source 9V battery (approximately 250 hours of use)

Dimensions 2.375 x 2.375 x 1.375 inches (H x W x D)


  • 54-125-777_2.jpg
    Product DescriptionThe Fowler 54-125-777 Electronic Depth Gauge gage has a measurement range of 0 to 22", and a resolution (or smallest graduation interval) of 0.0005", with +/- .0...

  • 71aPD2ocp2L._SL1500_1.jpg
    Fowler Electronic IP54 Ball-Anvil Micrometers, 0.00005"/0.001mm Resolution, RS-232 Output Product FeaturesDigital outside micrometer with ball anvil and flat spindle pair and a cho...

  • Electronic Caliper_2.jpg
    Fowler Stainless Steel Frame Euro-Cal IV Electronic Caliper Product FeaturesAccuracy of 0.001"/0.02mm with 0.0005"/0.01mm resolution (fractions in 1/64" increments) for precise mea...

  • outside micrometer_2.jpg
    Fowler 52-253 Series Outside Inch Micrometer, Ratchet or Friction Stop Thimble Product FeaturesOutside micrometer with choice of measuring range and flat anvil/spindle pair for gen...

  • Steel Square Set_2.jpg
    Fowler Machinist Hardened Steel Square Set Product FeaturesSet of machinist squares designed for school and student use to test the squareness of workpiecesHardened steel construct...

  • fowler dial caliper 0-6
    Fowler 52-008-007-3 0-6" Dial Caliper Specifications Part Number 52008007Maximum Measurement 6 inchesMaterial Type Stainless SteelColor WhiteItem Weight 4.83 poundsManufacturer War...

  • outside micrometer_1.jpg
    Fowler 52-229-201 52-229 Series Swiss Style Outside Inch Micrometer, 0-1" Measuring Range, +/- 0.00016" Accuracy, 0.0001" Graduation Product DescriptionRange: 0-1" | Resolution: 0....

  • dial bore gauge_3.jpg
    Fowler 52-646-400 Extender Dial Bore Gage Set, 1.4-6" Measuring Range, 0.0005" Graduation Interval Product DescriptionThe Fowler 54-565-233 High-Accuracy Ultima Bore Gauging System...

  • fowler 2 Dimensional Coaxial Indicator Sets
    2 Dimensional Coaxial Indicator Sets Use the 2D Coaxial Set for accurate component centering and positioning in most machining applications. The 2D Coaxial indicator can be used at...
Visitors: 194,502