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Gaahleri · Ace Series · Genuine Spare Part

0.7mm High-Durability Needle for GHAC-Swallowtail

The high-flow needle for your Swallowtail trigger airbrush: primers, varnishes, clear coats and big surfaces. Bent, damaged or lost — this gets you spraying again.

✅ Why You'd Want One

🎯 Genuine Gaahleri part – the Swallowtail-specific 0.7mm needle, so it seats properly in the Swallowtail's 0.7mm 8-MAC nozzle.

💪 High-durability needle – Gaahleri's Ace Series needle is made to take a slight knock and spring back straight, rather than staying bent.

🛢️ Made for thick stuff – the 0.7mm is the Swallowtail setup for primers, varnishes, gloss and clear coats, and heavier paints that clog smaller needles.

⏱️ Fast coverage – moves a lot of paint quickly, which makes priming batches of miniatures, terrain boards and large kits much faster.

🔍 What Is This?

This is the replacement 0.7mm needle for Gaahleri's Ace Series Swallowtail trigger airbrush. It's the same needle that comes in the 0.7mm setup of the three-needle Swallowtail kits, sold on its own so you don't have to buy a full upgrade pack when only the needle needs replacing.

The 0.7mm is the biggest of the three Swallowtail sizes. It's built for flow rather than finesse: it lets thicker materials through without constant thinning and tip-dry, and it covers large areas in far fewer passes. Think primer on a whole army, a gloss coat before decals, matt varnish at the end, or base colours on a big vehicle, terrain piece or car body.

Gaahleri describe it as made from a high-durability material designed to withstand slight bending and recover on its own. That gives you more forgiveness during strip-downs and cleaning — but it isn't indestructible, as explained in the Worth Knowing section below.

📐 Specifications

Brand	Gaahleri
Product	0.7mm Airbrush Needle for GHAC-Swallowtail
Product code	42748
Needle size	0.7mm
Series	Ace Series (high-durability needle)
Pairs with	Gaahleri 0.7mm 8-MAC nozzle and 0.7mm nozzle cap for Swallowtail
Best for	Primers, varnishes, gloss and clear coats, thicker paints, large models and terrain

📦 What's in the Box

➡️ 1 × Gaahleri 0.7mm high-durability needle for GHAC-Swallowtail

Needle only — no nozzle, nozzle cap or air cap included.

🔧 Compatibility

✔️ Fits

• Gaahleri Ace Series GHAC-Swallowtail airbrushes in their 0.7mm setup, including the Barbatos Rex Ver. and StudioG Ver. three-needle kits

✖️ Doesn't fit

• Gaahleri Mobius, Seeker, GHAD-39, GHAD-68 or other non-Swallowtail Gaahleri airbrushes

• Other brands (Iwata, Harder & Steenbeck, Sparmax etc.)

• The 0.28mm or 0.5mm Swallowtail setups — needle and nozzle sizes must always match

• The Swallowtail fan cap, which is made for the 0.5mm setup only

📝 The Swallowtail SD ships with 0.28mm and 0.5mm setups only. To run 0.7mm you also need the matching 0.7mm nozzle and nozzle cap. Not sure which airbrush you've got? Send us a message with a photo and we'll check before you buy.

💡 Pro Tips

🔎 Check the tip before you blame the paint. Look at the needle under a magnifier or your phone camera on zoom. A small hook at the tip causes spatter, a lopsided pattern, or paint that won't shut off cleanly.

🪡 Never force it in. Loosen the chucking nut, slide the needle in gently until it stops in the nozzle, then nip the chucking nut up. If you feel resistance, back off and check the needle is straight and the nozzle is clean.

🌬️ Flow settings. The 0.7mm needs more air to atomise thicker material — around 25–35 PSI is a good starting point for primers and varnishes. Keep the trigger pull short at first; this size empties a cup quickly.

🥛 Thin less, not more. One of the main reasons to use a 0.7mm is spraying primers and varnishes closer to bottle consistency. Over-thinned paint through a 0.7mm floods, runs and spiders.

🧽 Clean straight after. Primers and varnishes cure fast and stick hard. Strip-clean after every 0.7mm session, and wipe the needle by drawing it through a cloth soaked in cleaner, from the back towards the tip.

🔩 Don't over-tighten the nozzle cap. The Swallowtail head uses an O-ring seal — finger-tight is enough. Over-tightening can damage the seal and cause bubbling in the cup.

⚖️ Worth Knowing

• This is a coverage needle, not a detail one. Independent testing found the Swallowtail's 0.7mm setup inconsistent for fine lines, and it wouldn't produce a fine dot. For shading and detail, use the 0.5mm or 0.28mm.

• It uses a lot of paint. Reviewers describe the 0.7mm as hosing paint on. Great for primer and varnish, wasteful for small batches of acrylics on a single miniature.

• "Withstands slight bending" means slight. The needle recovers from small flexes, but a dropped airbrush or a tip jammed hard into the nozzle can still hook it. A hooked tip can't be properly straightened — that's when you replace it.

• A new needle won't fix a damaged nozzle. If the nozzle is cracked or split, you'll still see spatter or air bubbles. If both parts are worn, Gaahleri also make a 0.7mm Upgrade Pack for the Swallowtail.

🚚 Shipping

📦 Orders placed before 3 PM (Mon–Fri) are dispatched the same working day from our workshop in Derby.

🛡️ Needles are packed protected so they arrive straight.

🛒 Combined postage — add other airbrush parts or paints to the same order and pay postage once.

Hobby Heaven

By Hobbyists. For Hobbyists.

Authorised UK dealer of Gaahleri airbrushes and spare parts. We use this kit ourselves — if you're unsure about compatibility or a fault on your airbrush, message us and a real person will help.

Gaahleri · Ace Series · Genuine Spare Part 0.7mm High-Durability Needle for GHAC-Swallowtail The high-flow needle for your Swallowtail trigger airbrush: primers, varnishes, clear coats and big surfaces. Bent, damaged or lost — this gets you spraying again. ✅ Why You'd Want One 🎯 Genuine Gaahleri part – the Swallowtail-specific 0.7mm needle, so it seats properly in the Swallowtail's 0.7mm 8-MAC nozzle. 💪 High-durability needle – Gaahleri's Ace Series needle is made to take a slight knock and spring back straight, rather than staying bent. 🛢️ Made for thick stuff – the 0.7mm is the Swallowtail setup for primers, varnishes, gloss and clear coats, and heavier paints that clog smaller needles. ⏱️ Fast coverage – moves a lot of paint quickly, which makes priming batches of miniatures, terrain boards and large kits much faster. 🔍 What Is This? This is the replacement 0.7mm needle for Gaahleri's Ace Series Swallowtail trigger airbrush. It's the same needle that comes in the 0.7mm setup of the three-needle Swallowtail kits, sold on its own so you don't have to buy a full upgrade pack when only the needle needs replacing. The 0.7mm is the biggest of the three Swallowtail sizes. It's built for flow rather than finesse: it lets thicker materials through without constant thinning and tip-dry, and it covers large areas in far fewer passes. Think primer on a whole army, a gloss coat before decals, matt varnish at the end, or base colours on a big vehicle, terrain piece or car body. Gaahleri describe it as made from a high-durability material designed to withstand slight bending and recover on its own. That gives you more forgiveness during strip-downs and cleaning — but it isn't indestructible, as explained in the Worth Knowing section below. 📐 Specifications BrandGaahleri Product0.7mm Airbrush Needle for GHAC-Swallowtail Product code42748 Needle size0.7mm SeriesAce Series (high-durability needle) Pairs withGaahleri 0.7mm 8-MAC nozzle and 0.7mm nozzle cap for Swallowtail Best forPrimers, varnishes, gloss and clear coats, thicker paints, large models and terrain 📦 What's in the Box ➡️ 1 × Gaahleri 0.7mm high-durability needle for GHAC-Swallowtail Needle only — no nozzle, nozzle cap or air cap included. 🔧 Compatibility ✔️ Fits • Gaahleri Ace Series GHAC-Swallowtail airbrushes in their 0.7mm setup, including the Barbatos Rex Ver. and StudioG Ver. three-needle kits ✖️ Doesn't fit • Gaahleri Mobius, Seeker, GHAD-39, GHAD-68 or other non-Swallowtail Gaahleri airbrushes • Other brands (Iwata, Harder & Steenbeck, Sparmax etc.) • The 0.28mm or 0.5mm Swallowtail setups — needle and nozzle sizes must always match • The Swallowtail fan cap, which is made for the 0.5mm setup only 📝 The Swallowtail SD ships with 0.28mm and 0.5mm setups only. To run 0.7mm you also need the matching 0.7mm nozzle and nozzle cap. Not sure which airbrush you've got? Send us a message with a photo and we'll check before you buy. 💡 Pro Tips 🔎 Check the tip before you blame the paint. Look at the needle under a magnifier or your phone camera on zoom. A small hook at the tip causes spatter, a lopsided pattern, or paint that won't shut off cleanly. 🪡 Never force it in. Loosen the chucking nut, slide the needle in gently until it stops in the nozzle, then nip the chucking nut up. If you feel resistance, back off and check the needle is straight and the nozzle is clean. 🌬️ Flow settings. The 0.7mm needs more air to atomise thicker material — around 25–35 PSI is a good starting point for primers and varnishes. Keep the trigger pull short at first; this size empties a cup quickly. 🥛 Thin less, not more. One of the main reasons to use a 0.7mm is spraying primers and varnishes closer to bottle consistency. Over-thinned paint through a 0.7mm floods, runs and spiders. 🧽 Clean straight after. Primers and varnishes cure fast and stick hard. Strip-clean after every 0.7mm session, and wipe the needle by drawing it through a cloth soaked in cleaner, from the back towards the tip. 🔩 Don't over-tighten the nozzle cap. The Swallowtail head uses an O-ring seal — finger-tight is enough. Over-tightening can damage the seal and cause bubbling in the cup. ⚖️ Worth Knowing • This is a coverage needle, not a detail one. Independent testing found the Swallowtail's 0.7mm setup inconsistent for fine lines, and it wouldn't produce a fine dot. For shading and detail, use the 0.5mm or 0.28mm. • It uses a lot of paint. Reviewers describe the 0.7mm as hosing paint on. Great for primer and varnish, wasteful for small batches of acrylics on a single miniature. • "Withstands slight bending" means slight. The needle recovers from small flexes, but a dropped airbrush or a tip jammed hard into the nozzle can still hook it. A hooked tip can't be properly straightened — that's when you replace it. • A new needle won't fix a damaged nozzle. If the nozzle is cracked or split, you'll still see spatter or air bubbles. If both parts are worn, Gaahleri also make a 0.7mm Upgrade Pack for the Swallowtail. 🚚 Shipping 📦 Orders placed before 3 PM (Mon–Fri) are dispatched the same working day from our workshop in Derby. 🛡️ Needles are packed protected so they arrive straight. 🛒 Combined postage — add other airbrush parts or paints to the same order and pay postage once. Hobby Heaven By Hobbyists. For Hobbyists. Authorised UK dealer of Gaahleri airbrushes and spare parts. We use this kit ourselves — if you're unsure about compatibility or a fault on your airbrush, message us and a real person will help.

Specifications

Brand Gaahleri
Sub-Type Airbrush Internal Mechanism
Type Airbrush Needle
MPN 42748
Compatibility: GHAC-Swallowtail, Swallowtail Barbatos Rex Ver., Swallowtail Stud
Country of Origin China
Suitable For Miniature Painting, Scale Modelling, Airbrushing
Feed Type Gravity Feed / Side Feed
EAN 6975834940690

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