will these work on 1/4" corroded stainless steel screws?

I just tried to use them to remove some 1/4-20 stainless flat head screws that were corroded into a piece of aluminum. The #2 tool, which is spec'd for 1/4" fasteners, broke with very little effort. Since the heads were big enough, I then tried to use the #4 tool, which is supposedly strong enough to remove 3/8" fasteners, and it broke too. I don't expect miracles from these tools but I do expect that they would strip the fastener head before breaking themselves. I consider this a design flaw and would not recommend them for really tough jobs.

I can't figure out what grade bolts are for license plates. I have 4 of them with broken heads. Is this kit strong enough?

license plate bolts should not be any heavier than grade 4These extractors are the greatest, I removed broken steel bolts that the head had stripped out-follow the instructionsthey are amazing!!!!

Need this to take the bolts out from my fender. Is this strong enough?

They should be strong enough, I have never had a problem with any of the Grabit products. I have used it to pull out stripped bolts off my old motorcycle.

I have an interior threaded pipe I need to remove that is th edrain for my air compressor. I snapped it off. It's inside diameter 5/16".

5/16 is too large for these, a standard extractor is tapered it's entire length, these aren't.

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Alden 8440P Grabit Pro Broken Bolt and Damaged Screw Extractor 4 Piece Kit

Alden 8440P Grabit Pro Broken Bolt and Damaged Screw Extractor 4 Piece Kit

Product ID: 56444663

Details

Brand
Alden
Finish type
Steel
Item length
10.5
Material
M2 HSS
Number of pieces
4

⚙️Dual-step drill & extractor combo

🛠️Self-centering tip for precision

🇺🇸Premium M2 HSS steel, made in USA

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MX$3579

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🛠️ Break free from stuck bolts—extract like a pro with Alden Grabit!

DURABLE M 2 HSS STEEL - Crafted from top-tier high-speed steel for unmatched strength and longevity.
VERSATILE SIZE RANGE - Four bits cover screws #4 to #24 and bolts up to 3/8", handling all common fasteners.
COMPACT PROFESSIONAL KIT - Four dual-ended bits in a sleek case—your go-to solution for broken fasteners.
TWO STEP EXTRACTION POWER - Drill & extract in one seamless motion—no extra tools needed.
PRECISION SELF CENTERING TIP - Eliminates wandering for flawless screw and bolt removal every time.

The Alden 8440P Grabit Pro Kit features four dual-ended M2 HSS steel bits designed to effortlessly remove broken or damaged screws and bolts up to 4" long. Its innovative two-step drill and extractor design with a self-centering tip ensures precision without extra prep work. Made in the USA, this compact kit covers a wide range of fastener sizes and types, making it an essential tool for professionals and DIYers aiming to save time and avoid costly repairs.

Specifications

ASIN	B001A4CWHO
Best Sellers Rank	94,142 in DIY & Tools ( See Top 100 in DIY & Tools ) 778 in Drill Bit Sets
Bit Compatibilities	Hex, Phillips, Square Drive
Brand	Alden
Customer Reviews	4.2 4.2 out of 5 stars (1,341)
Drive Bit Shank Style	3-flat
Drive System	Hex, Phillips, Square
Finish	Steel
Global Trade Identification Number	00727708084407
Included Components	Plastic case & 4 Professional Extractor Bits
Item Length	10.5 Centimetres
Manufacturer	Alden
Material	M2 HSS
Model Number	8440P
Number of Pieces	4
Part Number	8440P
Set Name	Alden 8440P Grabit Pro Broken Bolt and Damaged Screw Extractor Set
UPC	786830337782 795871624188 744211231548 727708084407
Unit Count	4.0 count

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MX$3579

Duties & taxes included

In stock

Sold byAmazon MexicoDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Mexico.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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

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