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)

Mr Pen Professional Metal Compass Set 7 Pcs

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Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

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2523 som

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Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Master your craft with precision and style!

COMPLETE PRO KIT - Includes extension beam, pencil holder, 10 extra leads, spare needle, screws, and screwdriver.
DURABLE METAL BUILD - Premium metal construction designed for long-lasting professional use.
PORTABLE ORGANIZED - Comes in a clear, reusable pouch for easy storage and on-the-go convenience.
EFFORTLESS ADJUSTMENTS - Spring bow head and push-button mechanism prevent slips and ensure quick settings.
PRECISION CIRCLES EVERY TIME - Draw perfect circles up to 18 inches with ease and accuracy.

The Mr. Pen Professional Metal Compass Set is a 7-piece precision drafting tool designed for math, geometry, art, and drafting professionals. Featuring a spring bow head with push-button adjustment, it creates circles up to 18 inches in diameter. The set includes an extension beam, pencil holder, extra leads, spare needle, screws, and screwdriver, all housed in a reusable pouch for portability and durability.

Specifications

ASIN	B07MJVSB7D
Best Sellers Rank	#17,213 in Office Products ( See Top 100 in Office Products ) #20 in Drafting Compasses
Brand	Mr. Pen
Customer Reviews	4.2 4.2 out of 5 stars (2,661)
Date First Available	January 11, 2019
Item Weight	4.2 ounces
Item model number	GP01
Manufacturer	Mr. Pen
Manufacturer Part Number	GP01
Material Type	Metal
Package Dimensions	6.69 x 2.76 x 0.67 inches

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