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 Pro Grabit Broken Bolt and Damaged Screw Extractor 4 Piece Kit - Made in the USA

Alden 8440P Pro Grabit Broken Bolt and Damaged Screw Extractor 4 Piece Kit - Made in the USA

Product ID: 4353144

Details

Brand
ALDEN
Drive System
Phillips Hex
Finish Type
Steel
Item Length
4 Inches
Number of Pieces
4

🔄Self-centering tip, no prep needed

🛠️2-step drill & extractor combo

🇺🇸Made in USA, premium M2 HSS steel

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€ 63.80

Duties & taxes included

In stock

Sold byAmazon ItalyDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Details

Brand
ALDEN
Drive System
Phillips Hex
Finish Type
Steel

Description

🔧 Extract with confidence — never let a broken bolt slow you down!

BUILT TO LAST - Crafted from high-grade M2 HSS steel and proudly made in the USA for unmatched durability and performance.
PRO LEVEL RESULTS - Designed for professionals and DIYers alike, this 4-piece kit tackles broken bolts and damaged screws with ease, saving you time and frustration.
EFFORTLESS ACCURACY - Self-centering drill tip prevents wandering, ensuring perfect alignment every time without grinding or center punching.
LIFETIME CONFIDENCE - Backed by Alden’s Lifetime Warranty, guaranteeing replacement for any manufacturing defects—your investment is protected.
DUAL ACTION PRECISION - Two-step drill and extractor in one tool eliminates the need for multiple tools, streamlining your workflow.

The Alden 8440P Pro Grabit Kit is a premium 4-piece broken bolt and damaged screw extractor set featuring a unique two-step drill and extractor design. Made from high-quality M2 HSS steel in the USA, it offers self-centering precision without the need for grinding or center punching. Trusted by professionals and backed by a lifetime warranty, this kit delivers reliable, damage-free bolt removal for a seamless repair experience.

Specifications

ASIN	B001A4CWHO
Best Sellers Rank	#46,489 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #55 in Tap Extractors
Bit Compatibilities	drill, impact driver, nut driver
Brand	ALDEN
Brand Name	ALDEN
Customer Reviews	4.2 out of 5 stars 1,478 Reviews
Drive Bit Shank Style	cylindrical
Drive System	Phillips, Slotted, Hex, Torx, Tri-Wing, Pozidriv, Frearson
Finish Type	Steel
Finish Types	Steel
Global Trade Identification Number	00727708084407
Item Length	4 Inches
Manufacturer	Alden
Manufacturer Part Number	8440P
Manufacturer Warranty Description	90 day limited warranty.
Model Number	8440P
Number of Items	1
Number of Pieces	4
Set Name	Alden 8440P Pro Grabit Broken Bolt and Damaged Screw Extractor 4 Piece Kit
UPC	786830337782 795871624188 744211231548 727708084407
Unit Count	4 Count

Reviews

R**N

10.10.2009

A**K

31.07.2011

D**S

10.05.2012

T**H

7.02.2015

Z**Y

24.11.2012

S**.

27.03.2017

V**Y

20.08.2023

I**R

12.01.2015

A**R

24.03.2026

K**N

28.06.2024

P**P

4.07.2013

J**L

3.02.2024

A**G

12.04.2014

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€ 63.80

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In stock

Sold byAmazon ItalyDelivered 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 Italy.

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