does this tool work so that you can get an angle and then it will let you know the degree on saw?

that's what it is designed to do, so yes if apply it to the angle you want to cut you just have to make the cut at that angle

Will this lay flat on a table, even with the wing nut?

The square head will lay flat on a table surface, the square head measure read plate is 1.22mm or 3/64'' thick thus leaving the measure indicating arm that much above the surface.Hope this answers the question and is helpful. Oscar

Are the edges of the protractor rectangular plate with the graduation truly square?. Can you use any edge adding 90 degrees when using the sides?

First question answer is yes, I checked mine at 90 degrees and 45 degrees. Second question answer yes, I have drawn two lines parallel using each side of the protractor arm. The markings run left to right to left and left to right on two levels. Trust this explanation has answered your questions.

What are the dimensions of the bar... ?

The bar, from the pivot point to the extremity is 150 mm long, 15 mm wide and about 1.5 mm thick made of stainless steel The angle measuring plate measures 90mm by 52mm.

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17 Square Head Stainless Steel Angle Protractor, 0 to 180 Degrees, 6-Inch Arm

Product ID: 307567224

Details

Brand
General Tools
Colour
Stainless
Material
Stainless
Product dimensions
20.3L x 5.1W
Style
Square Head

📐0°-180° precision range

🔩6-inch adjustable locking arm

🛡️Stainless steel durability

Description

📏 Master every angle with precision and style — don’t get left behind!

BUILT TO LAST - Crafted from stainless steel for rust resistance and long-term strength — no more flimsy plastic tools.
VERSATILE PRO TOOL - Ideal for professionals and hobbyists alike — from carpenters to students mastering geometry.
LOCK LOAD ACCURACY - Knurled thumb nut locks the 6-inch arm firmly in place for steady, hands-free angle setting.
SQUARE HEAD STABILITY - Anchor the protractor securely against surfaces for flawless, single-move angle drawing.
PRECISION AT EVERY ANGLE - Deeply etched graduations ensure measurements from 0° to 180° stay crisp and fade-resistant.

The General Tools 17 Square Head Stainless Steel Angle Protractor offers precise 0° to 180° angle measurements with a durable 6-inch adjustable arm that locks securely. Its stainless steel construction ensures rust resistance and longevity, while the square head design provides stable anchoring for accurate, single-move angle marking. Perfect for professionals and students seeking a reliable, high-quality protractor.

Specifications

ASIN	B00004T7TB
ASIN	B00004T7TB
Best Sellers Rank	#113,212 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #71 in Construction Protractors
Brand Name	General Tools
Color	Stainless Steel
Customer Reviews	4.5 4.5 out of 5 stars (2,772)
Customer reviews	4.5 4.5 out of 5 stars (2,772)
Date First Available	3 August 2012
Department	Protractors
Global Trade Identification Number	00038728220189
Included Components	STEEL PROTRACTOR
Is Discontinued By Manufacturer	No
Item Dimensions L x W	20.3L x 5.1W centimeters
Item Type Name	General Tools 17 Square Head Stainless Steel Angle Protractor, 0 to 180 Degrees, 6-Inch Arm
Item Weight	0.14 Pounds
Item model number	17
Manufacturer	General Tools
Manufacturer	General Tools
Material Type	Stainless Steel
Model	17
Part Number	17
Product Dimensions	31.75 x 9.86 x 4.14 cm; 63.5 g
Style Name	Square Head
UPC	043985291384 735090080136 038728220189 732233471196 079531644847 796084346041 752913196263
Unit Count	1 Count

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TrustScore 4.5 | 7,300+ reviews

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