Nozzle Cleaning Pins & Unclogging Tools

SKU: 33415-All

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Stainless steel insect pins double as precision nozzle cleaning tools. Ideal for 3D printers, misting systems, fuel injectors or spray equipment. They are durable, rust-resistant, and reusable.

These stainless steel insect pins are not just for specimen mounting. They’re also perfect as precision nozzle cleaning tools. Each pin has a uniform, hardened shaft that slides easily into narrow orifices, making it effective for nozzle maintenance in 3D printers, misting systems, or spray jets. The polished finish prevents scratching delicate brass or stainless-steel openings, and their fine diameters (sizes 000 to 7) match most small nozzle apertures.

Reusable and easy to sterilize, these nozzle unclogging pins are a cost-effective alternative to single-purpose cleaning wires. Keep a set on hand for nozzle maintenance, printer repair, and laboratory spray cleaning.

The thinnest ones are very flexible so you will need tweezers or hemostats to hold them near their tips. Alternatively, you can try some of our dental picks.

We've offered Czech made stainless steel pins since 2005. Entosphinx stainless steel pins are 316 grade stainless steel with a nylon head; protect your valuable collections whether they're insects or textiles. Buy just a few & our delivered cost beats "free" shipping!

Google Reviews, click on the names to see in full:
Alison B.: ...ordered a sample pack of insect pins for making pinhole cameras....wonderful selection and super-fast shipment...…
Mary C. B. ...Indigo Instruments entomology pins...in my artwork for almost ten years now, and a big part of my studio practice!

Details Specs Docs Reviews Related Products

Details

Why It Works as a Nozzle Cleaning Tool

Precision diameters: Match common nozzle sizes from 0.2–0.6 mm.
Rigid stainless steel: Won’t bend or deform like copper or plastic wires.
Corrosion resistant: Safe for use with water-based, resin, or chemical sprays.
Reusable: Clean, sterilize, and store safely in their labeled pack.
Multi-purpose: Ideal for 3D printer unclogging, misting nozzle cleaning, airbrush maintenance, and other fine orifice systems.

Best Practices Table

Application	Recommended Pin Size	Technique	Notes
3D printer nozzle unclogging	000–1	Heat nozzle slightly, insert pin gently to dislodge filament residue.	Avoid forcing; use while nozzle is warm, not hot.
Misting or irrigation nozzle cleaning	1–3	Insert pin to clear mineral deposits, rinse with distilled water.	Wear gloves; avoid scratching brass nozzles.
Airbrush tip maintenance	2–4	Rotate gently to remove paint buildup, rinse with solvent.	Follow solvent safety guidelines.
Spray equipment & lab jets	3–7	Use matching size for orifice; flush with compressed air afterward.	Ideal for recurring maintenance schedules.

Some blogs that may be of interest:

Insect Pins for Art, Nozzles, Puppetry...Even Insects. Our pins ensured Sponge Bob's pants didn't fall down!

Pinhole Photography & Eye Evolution. See also pinhole camera examples with a #0 insect pin & a #1 insect pin.

See our blog Bioquip Inc. Products Catalog-Indigo Instruments Equivalents may be a useful reference for some.

Related information or images

Specifications

Stainless steel insect pin sizes are listed below. The thinnest pins may need a hemostat (clamping forcep) to properly clean clogged nozzles.

Pin #	Dimensions	Pin Head	Wire Gauge(s)
000	38x0.25mm (1.5x0.01")	0.9mm	46, 47
00	38x0.30mm (1.5x0.012")	1.1-1.3mm	45, 46
0	38x0.35mm (1.5x0.014")	1.1-1.3mm	43, 44
1	38x0.40mm (1.5x0.016")	1.1-1.3mm	42
2	38x0.45mm (1.5x0.018")	1.1-1.3mm	41
3	38x0.50mm (1.5x0.02")	1.1-1.3mm	40
4	38x0.55mm (1.5x0.022")	1.1-1.3mm	39, 40
5	38x0.60mm (1.5x0.024")	1.1-1.3mm	38-39
6	38x0.65mm (1.5x0.026")	1.5mm	37-38
7	50x0.60mm (2x0.024")	1.6mm	38-39

Note: 25mm=~1". So 38mm=~1.5"; 50mm= ~2"; 1/64"=0.015".

Certificate of Analysis

Documentation

Certificate of Analysis

Entosphinx stainless steel pins are made from 316 grade stainless steel which has a minimum of 0.36% molybdenum (Mo) for superior corrosion resistance. This Certificate of Analysis is our guarantee of truly rust resistant insect collection pins.

Reviews (1)

2019-12-17

This was my first time with Indigo Instruments. Quick service. Great products. In this case, stainless steel insect pins. I'm glad I got the sample pack because I found the right size I wanted and it helped me with my next purchase. Way to go Indigo!

— TK

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Nozzle Cleaning Pins & Unclogging Tools

$8.00USD or lower Each

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