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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VT3452

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Sold byAmazon VanuatuDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🎯 Master precision with every stroke—because your work deserves the best.

TRUSTED RATED - Join thousands of satisfied users with a 4.2-star rating and responsive 24-hour customer support.
COMPLETE PRO KIT - Includes extra lead, spare needle, screws, and screwdriver—all neatly packed in a reusable pouch for on-the-go convenience.
DURABLE METAL BUILD - Crafted from premium metal for long-lasting performance and professional-grade reliability.
EFFORTLESS ADJUSTMENTS - Spring bow head and center wheel with push-button mechanism prevent slips and ensure quick, accurate settings.
PRECISION CIRCLES EVERY TIME - Draw perfect circles up to 18 inches with the extension beam for flawless math, art, and drafting projects.

The Mr. Pen Professional Metal Compass Set is a 7-piece precision drafting tool designed for professionals and enthusiasts alike. Featuring a universal adapter, extension beam for circles up to 18 inches, and a spring bow head with push-button adjustment, it ensures accuracy and ease of use. The set includes extra lead, spare needles, screws, and a screwdriver, all housed in a reusable pouch. Made from durable metal, it offers lifetime satisfaction backed by responsive customer support.

Specifications

ASIN	B07MJVSB7D
Best Sellers Rank	#28,706 in Office Products ( See Top 100 in Office Products ) #27 in Drafting Compasses
Brand	Mr. Pen
Customer Reviews	4.2 4.2 out of 5 stars (2,663)
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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