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Q: Are the inserts stainless steel?

Yes! If they are some other metal it will say on the package.

Q: Will these hold well in an aluminum cylinder head to fix 2 stripped rocker holes, and be long enough?Spring psi. is ~450lbs. open.

I don’t know the specs for my psi but I used this set to fix 2 rockers on a 3.1 Chevy engine, worked perfectly.

Q: I need a heli-coil for an 8 x 32mm motorcycle exhaust header stud of unknown thread pitch, will this product work?

I used one for an exhaust manifold bolt on an Ecotec 2.2L engine (2006 Saturn Vue). It was easily installed. The hole had gotten out of round and to large for the heli-coil itself, so I drilled the head for a 13mm hole and used a piece of13mm Aluminum bar, a little over 30mm and drilled that out and inserted that heli-coil. Everything went together without a problem, but it was just recently done, so time will tell if it lasts forever but I don't invision a problem.

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Description

🛠️ Fix it right, fix it tight – thread repair made effortless!

TRUSTED BRAND - Heli-Coil’s proven quality trusted by pros worldwide for thread repair.
COMPACT PORTABLE - Slim 5.6 x 3.6 inch package fits perfectly in any professional toolkit.
DURABLE RELIABLE - Crafted from premium materials to ensure long-lasting thread strength.
ALL IN ONE SOLUTION - Includes tap, installation tool, and clear instructions for effortless use.
PRECISION REPAIR KIT - Restore stripped threads flawlessly with 12 high-quality inserts.

The Heli-Coil 5546-8 M8 x 1.25 Metric Coarse Thread Repair Kit is a professional-grade solution designed to restore damaged or stripped tapped holes. Featuring 12 precision inserts, a dedicated tap, and installation tool, this compact kit ensures durable, reliable thread repairs with ease. Perfect for managers and pros who demand efficiency and quality in their toolkit.

Specifications

Manufacturer	Heli-Coil
Brand	Helicoil
Model	5546-8
Item Weight	0.2 ounces
Product Dimensions	5.6 x 0.5 x 3.6 inches
Item model number	5546-8
Is Discontinued By Manufacturer	No
Exterior	Smooth
Manufacturer Part Number	55468
OEM Part Number	5546-8
National Stock Number	5325-01-554-7009

Have a Question? See What Others Asked

Are the inserts stainless steel?

Will these hold well in an aluminum cylinder head to fix 2 stripped rocker holes, and be long enough?Spring psi. is ~450lbs. open.

I need a heli-coil for an 8 x 32mm motorcycle exhaust header stud of unknown thread pitch, will this product work?

What adapter do I need to fit on the silver thread cutter to be able to turn it?

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

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Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

Zainab N.

Fantastic and great service. Shipping was faster than expected.

1 week ago

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