Protractors Measure Angles: 180° & 360° Protractors are used in Drafting & Math

The Protractor is a tool used in drafting to draw and measure angles other than 30°, 45°, 60°, or 90°. Found in most schools, the protractor is used in math such as geometry an, science or any subject needing to measure or draw angles. Most protractors are made of transparent plastic with graduations printed on them. We offer a complete line of protractors from Alvin, C=Thru and Thru-Angle.

Semi-circle protractors have 180° graduations
Full Circle protractors have 360° in graduations
Tru-Angle Bevel protractors has two swinging arms measuring 360° excellent for wood working and precise measurements



6" Professional Half Circle Protractor
Code: 20076
MFG Part #: P476
Regular price: $3.35
Sale price: $2.74
6" Professional Half Circle Protractor 20076
6" Semicircular Protractor for Math & Drafting
Code: 21268
MFG Part #: P466
Regular price: $2.85
Sale price: $2.32
6" Semicircular Protractor for Math & Drafting 21268
8" Semicircular Protractor for Math & Drafting
Code: 21269
MFG Part #: P477
Regular price: $5.40
Sale price: $4.42
8" Semicircular Protractor for Math & Drafting 21269
6" Academic Transparent Semicircular Protractor 376
Code: 21253
MFG Part #: 376
Regular price: $1.60
Sale price: $1.48
6" Academic Transparent Semicircular Protractor 376 21253
3 1/2" Half Circle Protractor 180° Pkg of 12
Code: 21254
MFG Part #: 3751
Regular price: $10.55
Sale price: $10.29
3 1/2" Half Circle Protractor 180° Pkg of 12 21254
4" Full Circle 360° Protractor for School
Code: 21263
MFG Part #: P234
Regular price: $2.75
Sale price: $2.26
4" Full Circle 360° Protractor for School 21263
6" Full Circle 360° Protractor for School
Code: 21264
MFG Part #: P236
Regular price: $3.60
Sale price: $2.95
6" Full Circle 360° Protractor for School 21264
6" Full Circle 360° Protractor for Professionals
Code: 21266
MFG Part #: P260
Regular price: $5.40
Sale price: $3.92
6" Full Circle 360° Protractor for Professionals 21266
8" Full Circle 360° Protractor for Professionals
Code: 21267
MFG Part #: P263
Regular price: $8.45
Sale price: $6.14
8" Full Circle 360° Protractor for Professionals 21267
7 " True Angle 360° Adjustable Protractor
Code: 21115
MFG Part #: Q106
Regular price: $9.95
Sale price: $8.53
7 " True Angle 360° Adjustable Protractor 21115
This item is currently out of stock!
12" True Angle 360° Adjustable Protractor
Code: 21116
MFG Part #: Q112
Regular price: $15.49
Sale price: $13.27
12" True Angle 360° Adjustable Protractor 21116
This item is currently out of stock!
18" True Angle 360° Adjustable Protractor
Code: 21117
MFG Part #: Q118
Regular price: $20.99
Sale price: $17.99
18" True Angle 360° Adjustable Protractor 21117
This item is currently out of stock!
23 5/8" True Angle 360° Adjustable Protractor
Code: 21118
MFG Part #: Q123
Regular price: $25.69
Sale price: $22.02
23 5/8" True Angle 360° Adjustable Protractor 21118
This item is currently out of stock!
Value Pack True Angle 360° Adjustable Protractor Sizes 7", 12", 18" & 23 5/8"
Code: 21119
MFG Part #: Q199
Regular price: $61.99
Sale price: $57.23
Value Pack True Angle 360° Adjustable Protractor Sizes 7", 12", 18" & 23 5/8" 21119
This item is currently out of stock!
4" Attachable Dial for True Angle 360° Adjustable Protractor
Code: 21120
MFG Part #: Q104
Regular price: $5.95
Sale price: $5.49
4" Attachable Dial for True Angle 360° Adjustable Protractor 21120