Will any of the filaments write on glass?

I don't believe so: it is a pencil, & I don't think that they offer a grease pencil insert that would adhere to the surface of a glass fiber.

Does the stainless tube run from tip to end? Will this thing take a jobsite beating

Great questions! The stainless steel tube runs the bottom half of the pencil. The TUFF Carbon pencil will, most certainly, withstand quite a beating. The only part that is subject to abuse is the mechanism itself; if used properly, it will be a long-lasting tool.

Does this work well on sheet metal/dusty sheet metal?

I bought it to work on metal. You will need to get the silver streak refills though. Also, try and keep it interesting in the bedroom. You’re welcome.

Like many others, the marker works for a day or so - lead will not advance. Can't find a helpful video on loading lead. Any help?

Hello, We provided a link where you can see how to load the marking pencil. https://www.youtube.com/watch?v=rXmM7__r7cs

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OX Tuff Carbon - Marking Pencil Value Pack

Product ID: 337009526

Details

Age range (description)
Adult
Brand
OX
Colour
Black
Ink colour
Black
Material
Polypropylene
Model name
OX Tuff Carbon

💧Water-resistant ink for durability

✏️2B Hardness for precise, bold marks

🖐️Ergonomic grip for all-day comfort

MX$822

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Description

✏️ Mark your success with OX Tuff Carbon – where precision meets durability!

BUILT TO LAST - Water-resistant ink ensures your marks stay put in any condition
COMFORT IN YOUR HAND - Ergonomic rectangular body reduces fatigue during extended use
VALUE PACK ADVANTAGE - Multiple pencils in one pack to keep you stocked and ready
PRECISION MEETS POWER - 2B hardness delivers sharp, clear lines every time
TRUSTED BY PROS SINCE 1974 - OX Tools’ legacy means reliability on every project

The OX Tuff Carbon Marking Pencil Value Pack features 2B hardness compressed charcoal for sharp, visible marks. Designed with an ergonomic rectangular polypropylene body and water-resistant black ink, it offers durability and comfort for professional marking tasks. Trusted by professionals since 1974, this value pack ensures you stay prepared with reliable, long-lasting marking tools.

Specifications

ASIN	B08XQVV4GR
Age Range Description	Adult
Artistic Charcoal Form	Compressed Charcoal
Best Sellers Rank	6,388 in DIY & Tools ( See Top 100 in DIY & Tools ) 9 in Carpenters Pencils
Body Shape	Rectangular
Brand Name	OX
Closure Type	Button
Colour	Black
Customer Reviews	4.4 4.4 out of 5 stars (2,337)
Drill Point	Fine
EU Spare Part Availability Duration	1 Years
Global Trade Identification Number	09341231018336
Grip Type	Ergonomic
Hardness	2B
Included Components	OX Tuff Carbon - Marking Pencil Value Pack
Ink Base	Water
Ink Colour	Black
Is the Product Left or Right Handed?	Right
Item Diameter	18 Millimetres
Item Dimensions	9.5 x 1.8 x 21.5 centimetres
Item Type Name	OX Tuff Carbon - Marking Pencil Value Pack
Item Weight	0.03 Kilograms
Line Size	2.8
Manufacturer	OX TOOLS
Material Type	Polypropylene Acrylonitrile Butadiene Styrene Stainless Steel
Model Name	OX Tuff Carbon - Marking Pencil Value Pack
Model Number	OX-P503210
Product Warranty	1
Recommended Uses For Product	Marking Out
Special Features	Ergonomic
Style	Single
Subject Character	Pencil
Theme	Utility
Unit Count	1.0 count
Water Resistance Level	Water Resistant
Writing Instrument Form	Crayon
Writing Technique	pencil

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Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

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MX$822

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

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