What is the maximum diameter? The description says 18" while the video says 24"

With the "extender leg" attached I am able to open the compass to a diameter of 11.5". I don't see how you could expand it to 18" or 24".

Can you use this with other drawing utensils like markers?

Yes you can use markers and pens and pencils. Built in there is a lead, but there's an attachment that lets you use any kind of writing pen/marker/pencil that is up to 1/2 in diameter.

What is the diameter of the lead? I need more than the standard black lead. Most compass's are 2mm>

This is also 2mm. Make one, there's plenty of cool compass plans available online. That's what I did for my trammel points (beam compass)

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Mr. Pen- Professional Compass with Lock, Up to 18 inch Diameter, Compass for Geometry, Drafting Compass, Precision Compass Math, Compass Drawing, Compass with Wheel, Metal Compass Geometry

Product ID: 263716582

📏Up to 18-inch diameter precision

⚙️Push-button quick leg adjustment

🛠️Includes screwdriver & spare parts

€ 32.38

Duties & taxes included

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Sold byAmazon FinlandDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Master precision, own the circle.

LOCK IT DOWN - Spring bow head and thumbwheel lock prevent slip-ups and keep your lines flawless.
UNIVERSAL FIT - Compatible with pencils, pens, and mechanical pencils—versatility that matches your style.
SLEEK DURABLE - Premium metal build with a reusable pouch—carry your precision tool like a pro.
READY FOR ANYTHING - Comes with 10 extra leads, spare needle, screws, and a handy screwdriver—always be prepared.
DRAW BIG DRAW BOLD - Create perfect circles up to 18 inches with ease—stand out in every project.

The Mr. Pen Professional Compass is a durable metal drafting tool designed for precision geometry and art, capable of drawing circles up to 18 inches in diameter. Featuring a spring bow head with a push-button mechanism to prevent unintended leg movement, it offers quick and accurate adjustments. The compass includes a universal adapter for various writing instruments, an extension beam for larger circles, and comes with extra leads, needles, screws, and a screwdriver, all packed in a reusable pouch for easy storage and transport.

Specifications

ASIN	B07MJVSB7D
Best Sellers Rank	#47,284 in Office Products ( See Top 100 in Office Products ) #139 in Drafting Compasses
Brand	Mr. Pen
Customer Reviews	4.2 4.2 out of 5 stars (2,558)
Date First Available	8 March 2019
Item Weight	118 g
Manufacturer	Mr. Pen
Manufacturer Part Number	GP01
Material Type	Metal
Model number	GP01
Package Dimensions	16.99 x 7.01 x 1.7 cm; 118 g

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