These waterproof marker pens are built for marking deep holes and tight spaces on metal, wood, and other surfaces, delivering clear, long-lasting marks every time.
Extended nib reaches deep into holes, grooves, and recessed areas
Waterproof, quick-drying ink resists smudging and fading
Writes on metal, wood, plastic, and more
Available in red, black, blue, and green ink colors
Bold 1-2mm line width for high visibility
Ideal for carpenters, metalworkers, and DIY enthusiasts
Why you'll love these markers
🎯
Reach deep and tight spots
The extended nib lets you mark inside holes, grooves, and recessed areas that standard markers simply can't reach.
💧
Waterproof, smudge-resistant ink
Quick-drying ink resists smudging and fading, so your marks stay clear and readable even in demanding conditions.
🛠️
Built for the workshop
Durable construction withstands workshop conditions, making these pens a reliable choice for carpenters, metalworkers, and DIY enthusiasts.
🌈
Four ink colors
Choose from red, black, blue, or green to color-code your markings and keep your projects organized.
Specs
The details that matter
Built to last outdoors, season after season.
Quantity
4 or 12 pieces
Ink Color
Red, Black, Blue, Green
Line Width
1-2mm
Nib Type
Long Head
Ink Type
Waterproof
Comparison
Why choose these deep hole markers?
Not all products in this category are built the same.
Feature
SmartPicksDesk
Typical alternative
Nib reach
Extended long-head nib reaches deep into holes, grooves, and recessed areas
Standard nib struggles to reach confined spaces
Ink durability
Waterproof, quick-drying ink resists smudging and fading
Ordinary ink may smudge or fade over time
Surface compatibility
Writes on metal, wood, plastic, and more
Limited to certain surfaces
Line visibility
Bold 1-2mm line width for high visibility
Thinner, less visible marks
Color options
Available in red, black, blue, and green
Often limited to a single color
Our worry-free shopping promise
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Frequently asked questions
Everything you might want to know before you order.
What surfaces can these markers write on?
These markers write on metal, wood, plastic, and more, making them versatile for carpentry, metalworking, and DIY projects.
How does the extended nib help with marking?
The extended nib reaches deep into holes, grooves, and recessed areas, allowing you to mark in tight and confined spaces that standard markers cannot access.
Is the ink waterproof?
Yes, the ink is waterproof and quick-drying, which helps resist smudging and fading for long-lasting marks.
What line width do these markers produce?
These markers produce a bold 1-2mm line width, ensuring high visibility for your markings.
What ink colors are available?
The markers are available in red, black, blue, and green ink colors, so you can choose the best option for your project or color-code your work.
How many markers come in a pack?
You can choose between a pack of 4 or 12 pieces, depending on your needs.
Shipping & returns
Shipping
Delivers to Germany (based on your selected country/region).
Estimated delivery: 3–15 business days after dispatch.
Shipping cost: Free.
Returns
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.
The black and blue pens are quite strong, but the red and green ones are not as strong. Still, I recommend them because the writing is precise and smooth.
S
Siu VonRueden
They are of good quality and fulfill their purpose.
B
Billie Howe
They look good, I haven't tried them yet.
T
Terry Nitzsche
Fantastic
A
Adrianna Runte
Product is same as on the pictures. mixed colors. fast dekivery time.
K
Katrice Ruecker
Excellent! sent
immediately and profit quickly... excellent quality, reliable seller... works with the right courier... congratulations!
A
Anthony Nicolas
Bon article
T
Tyrone Ondricka
I'll say if it works for a longer period of time...
C
Casey Schuppe
The product is good, especially for the price it has.
It came well packed and with everything inside. quick delivery and good product!
E
Ernestina Carroll
A good product that works great for routing.
R
Ruthe Hegmann
It arrived on time, they are very lightweight and the tip is not soft; I hope they are durable.
L
Loan Muller
They are perfect.
W
Wm Collins
All markers arrived in perfect condition and without damage, functioning perfectly, great for deep marking use.
I recommend it.
S
Stevie Kuhic
They work.
N
Nohemi Becker
Good.
E
Esteban O'Conner
They seem to work as they say, we just need to see how long they last.
A
Adria Lueilwitz
They arrived in good condition and quickly. They paint well on all types of materials. With a 20mm tip, you can mark inside deep holes or grooves (up to 20mm).
