Unfortunately, no they are not.

Mr. Pen Triangle Ruler, Protractor, Math Set - 3 Pack, Square Ruler, Protractor for School Geometry

Mr. Pen Triangle Ruler, Protractor, Math Set - 3 Pack, Square Ruler, Protractor for School Geometry

Q: where is the hole to place on the vortex to measure the angle?

SUSANLEE, THERE ISN'T ONE. ALSO, THIS SET AND I'VE HAD TWO REPLACEMENTS SINCE THE ORIGINAL PURCHASE ARE DEFECTIVE. I FOUND ALL MEASURMENTS ON EVERY PIECE ARE OFF BY A CONSIDERABLE AMOUNT. I MEASURED THEM AGAINST THREE DIFFERENT RULERS AND EVERY ONE WAS OFF. ADDITIONALLY, THE MEASURMENT MARKS ARE SO FAINT I CAN BARELY SEE THEM EVEN AGAINST BLEACH WHITE PAPER. DON'T WASTE YOUR MONEY.

4.5/5

Product ID: 257238359

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Details

Material
Plastic
Brand
Mr. Pen
Colour
Transparent
Style
Compact
Graduation range
1/16 Inches

📏3 precise rulers in one set

🔍etched, easy-read measurements

🔺transparent for perfect visibility

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Mr. Pen Triangle Ruler, Protractor, Math Set - 3 Pack, Square Ruler, Protractor for School Geometry

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Description

📐 Elevate your precision game—geometry tools that mean business!

TRIPLE GEOMETRY POWER - Includes 12-inch straight ruler, 45° and 30/60° set squares for versatile precision.
PRECISION ETCHED MARKINGS - Inch and centimeter scales are laser-etched for durability and effortless reading.
CRYSTAL CLEAR TRANSPARENCY - See your work clearly with transparent plastic that enhances accuracy and reduces errors.
PROTRACTOR WITH CENTER CUTOUT - Easily measure and draw angles with the integrated protractor featuring a handy center hole.
BUILT FOR PROFESSIONALS STUDENTS - Trusted by architects, engineers, designers, and students for flawless geometry tasks.

The Mr. Pen Triangle Ruler and Protractor 3-pack offers a professional-grade geometry set featuring a 12-inch straight ruler, 45° and 30/60° set squares, all crafted from transparent plastic with etched inch and centimeter markings. Lightweight yet sturdy, this versatile set is ideal for architects, engineers, designers, and students seeking accuracy and clarity in every measurement.

Specifications

Manufacturer	Mr. Pen
Brand	Mr. Pen
Product Dimensions	30.48 x 30.48 x 0.1 cm; 91 g
Color	Transparent
Material Type	Plastic
Manufacturer Part Number	KG03
Item Weight	91 g

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where is the hole to place on the vortex to measure the angle?

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TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Neha S.

Excellent communication throughout the order process. Product is perfect.

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