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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General Tools 17 Square Head Metal Protractor (17XXX)

General Tools 17 Square Head Metal Protractor (17XXX)

Product ID: 51951674

Details

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

📏6" adjustable arm with locking nut

🔢Permanently etched 0-180° graduations

🛠️Stainless steel durability

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R$497

Duties & taxes included

In stock

Sold byAmazon BrazilDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

📐 Measure Like a Pro, Work Like a Boss

READ IT RIGHT EVERY TIME - Ultra-fine etched graduations from 0 to 180 degrees won’t fade or wear off, guaranteeing consistent accuracy.
VERSATILE FOR EVERY PROJECT - Perfectly sized 2" square head and 3-3/8" length make it ideal for woodworking, machining, drafting, and even homework.
TRUSTED BY PROS READY FOR YOU - Used worldwide by machinists and craftsmen, this tool elevates your precision game and professional credibility.
LOCK IT DOWN FOR FLAWLESS ANGLES - 6-inch adjustable arm with knurled locking nut lets you set and hold angles with absolute confidence.
BUILT TO LAST BUILT FOR PRECISION - Stainless steel construction ensures this protractor outlives every plastic alternative in your toolbox.

The General Tools 17 Square Head Metal Protractor is a precision-engineered, stainless steel measuring tool featuring a 6-inch adjustable arm with a locking nut and permanently etched graduations from 0 to 180 degrees. Designed for durability and accuracy, it’s ideal for professionals and DIYers alike who demand reliable angle measurements in machining, woodworking, drafting, and more.

Specifications

ASIN	B00004T7TB
Best Sellers Rank	736,787 in DIY & Tools ( See Top 100 in DIY & Tools ) 555 in Protractors
Brand	General Tools
Colour	Stainless Steel
Customer Reviews	4.5 out of 5 stars 2,773 Reviews
Global Trade Identification Number	00038728220189
Included Components	STEEL PROTRACTOR
Item Dimensions L x W	20.3L x 5.1W centimetres
Item Type Name	Square Head Angle Protractor
Item Weight	64 g
Manufacturer	General Tools
Manufacturer Part Number	17
Material	Stainless Steel
Model Number	17
Product dimensions	20.3L x 5.1W centimetres
Style	Square Head
Style Name	Square Head
UPC	043985291384 735090080136 038728220189 732233471196 079531644847 796084346041 752913196263
Unit Count	1.0 count

Reviews

A**R

Good for the money

Needed a protractor quickly, the one I wanted was out of stock, but this is OK, it is not a proffesional engineers protractor but nor is the price, it does the job and seems to be quite accurate, you get what you pay for !! For this price alone I recommend it.

23.07.2022

S**Y

Well built

Well built and very accurate for my woodworking needs

6.08.2022

H**D

Satisfait

19.11.2025

L**E

Works great for my son's math homework

Needed something for my son for home for his math homework. We had one from a certain company with a mustache, and it was an utter piece of junk, so we wanted something more useful, not plastic. This looked like it would work, and was metal. So we gave it a try. Love that unlike the others we were using, the standard arched plastic ones, it's easy to draw the angle with a single placement of the protractor and a single movement of the pencil. The thumb screw tightens for people who need that to hold it steady while using it. I was worried the size would be a bit awkward, but it's proven to not be the case. Can't beat it for the price, best protractor I've ever had.

9.04.2017

M**0

Bom produto

Muito boa qualidade. Atendeu ás expectativas

13.02.2025

C**Z

Buen producto

funciona bien, hay calidad y precio.

9.01.2022

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