CSMGY 10 Pcs Long Head Deep Hole Marker - Long Nib Markers, Multi-purpose Deep Hole Marker Pens, Quick Dry Waterproof Colorful Carpenter Pen Markers for Construction Bathroom Woodworking

Great for marking Tile. Makes such a fine, Mark.

Good pen for wood working projects, gets into tight places. Like it.

the ones that work are good

Worked great and the thin line is easy to see when cutting.

Super helpful for doing layout work with thick metal, holes, etc. Was a 100% Sharpie user, but these are now getting a lot of use. Really helpful. Only downside is they can get mangled if you leave them in your pocket while working. Not quite as tough as a Sharpie, but seem to hold up well.

Several of the pens became unusable a short time after opening (1-2 weeks) and 3 were unusable out of the box. I'll not be buying these again. While they were usable, they wrote well, but their inability to be reliable makes them a no for me.

These are great for marking metal and wood. The fine tips help make measurements more accurate than a bigger tip type sharpie. The long reach works good marking holes. Nice coworker gifts too!

Ink for all 10 markers was good. Hardly got ink checked out before had use for these deep hole markers. Wish I had known about sooner. With 2 sets I can have one on main floor and another upstairs in my craft room.