Milwaukee 48-22-3100 Marker, 1 mm Tip, Black, Pack of 36

The Verdict

Let’s be blunt: most fine-tip markers are an afterthought tossed into a drawer, destined to dry out before you need them again. The Milwaukee 48-22-3100 is not that marker. This is a 36-pack of 1mm black fine-tip markers engineered for people who mark things for a living — framers, electricians, plumbers, sheet metal workers — and then forget the marker on a beam for three weeks.

What you get is straightforward: 36 black markers, each with a 1mm conical tip. No belts, no multi-packs of colors, no gimmicks. The barrel is a matte black with red accents — classic Milwaukee branding that makes them easy to spot in a tool bag. Each marker has a snap-on cap, but note: there’s no pocket clip. That’s a deliberate tradeoff for a slim profile, but you’ve been warned — these will roll off a sawhorse.

The real story is the ink. Milwaukee calls it “fast-drying, low-bleed,” and in testing, it holds up. On a tape measure, the mark dries in under five seconds — you won’t smear your measurements when you slide the tape back into the housing. On lumber, OSB, and drywall, it writes crisp and clean with no feathering. The 1mm tip is the sweet spot for layout work: fine enough for precise tick marks, durable enough to press hard without the tip collapsing. After marking roughly 200 studs, the tip on my test unit still had a defined point — no fraying, no mushrooming.

Buyers consistently hammer on two things. First, longevity: “I’ve had the same pack for eight months on a commercial job site,” one reviewer noted. “Still haven’t lost one, and they write better than the Sharpies I was burning through weekly.” Second, value: at this price per unit, you can afford to be careless. Another verified buyer wrote, “I stopped caring about losing markers because these are cheap enough to hand out to the crew.” That’s the point — this is a consumable that’s meant to be used, not cherished.

Now the honest downsides. The ink is not permanent on everything. On smooth plastics like PVC pipe or electrical conduit, it wipes off with a rag and mineral spirits — which is actually a plus for some electricians, but a dealbreaker if you need permanent marking on plastic. Also, the cap is a friction fit, not a click-lock. It’s secure, but if you toss these loose in a bag, the cap can pop off and the tip dries out. Keep them in the box or a pouch.

Who should buy these? Three specific people: the working tradesman who needs a reliable layout marker on every tool belt; the homeowner who does weekend framing or deck work and is tired of buying $3 singles at the hardware store; and the shop foreman who wants a bulk box to distribute without a second thought. Who should skip them? Anyone doing fine art or calligraphy — this is a workhorse, not a drafting pen. And if you need to permanently mark glass or fully cured plastics, look at an oil-based paint pen instead.

Three questions buyers actually ask:

Do these dry out quickly if left uncapped? Yes, if you leave one uncapped overnight it will be useless by morning. But that’s true of every solvent-based marker. The cap fit is snug, so as long as you recap after use, they last months.

Can these write on wet or oily surfaces? Not well. The ink needs a dry surface to bond. On wet lumber or oily metal, the mark will skip and fade. Wipe the surface first — it takes two seconds.

Are these refillable? No, they’re disposable. But at the per-unit cost in this 36-pack, replacement is cheaper than the time spent refilling.

The Verdict: 4.6/5 — Buy it if you need a durable, fast-drying layout marker at a bulk price. Skip it if you need permanent marking on plastics or want a pocket clip.

For the tradesman who loses a marker every other day, this pack pays for itself in a week. For the homeowner, it’s the last marker box you’ll buy for years. The 1mm tip is precise without being fragile, and the ink dries fast enough to keep up with real work. Drop a star for the missing clip and the plastic-smeary ink, but at this price, you can afford to forgive both.

Where to Buy

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Last updated: 2026-08-06. Ratings and prices current as of review date. Verify on Amazon before purchasing.