How do you remove the extractor from the fastener? Its seriously stuck now that it's done it's job

Put part in vise or vise grips, then turn extractor clockwise.

will this work on left handed treads?

No they are designed for right hand treads only

Are they really solid cobalt or just coated in cobalt?

In my experience, cobalt drill bits seem to be anywhere from 5% to a high of 8% cobalt (called m42) so I think you're very unlikely to ever come across solid cobalt bits. M42 bits are usually really good bits but they are normally pretty expensive. Nevertheless, I really would like to know what the percentage of cobalt is on this set because I didn't see it mentioned. Because broken bolts which need to be extracted can sometimes be made of pretty hard material, it would be really nice to find some good m42 left handed bits.

will it fit a laptop screw?

As it says the smallest size is 1/16". If the screw is smaller than that then the answer is "No". If I were drilling out the screw myself I would put that bit in a drill press to insure drilling completely vertical to the laptop.

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Neiko 04204A Hex Head Multi-Spline Screw and Bolt Extractor 25-Piece Set | 1/8” to 7/8” by 1/32” Increment

Product ID: 439540061

Details

Brand
Neiko
Finish Type
Steel
Material
Chrome Steel
Shank Type
Hex
Tool Flute Type
Spiral

🌀Left-hand spiral teeth

🔩25 precision sizes

⚙️Chrome molybdenum steel

908 zł

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Description

🔧 Extract the impossible — because broken screws don’t stand a chance!

BUILT TO LAST - Crafted from premium chrome molybdenum steel for unmatched durability and heavy-duty performance.
GRIP LIKE NO OTHER - Aggressive multiplane left-hand spiral teeth deliver superior gripping power and faster screw removal.
ORGANIZED ON THE GO - Durable, compact storage case keeps your set organized and ready for any job, anywhere.
TORQUE READY HEX HEADS - Precision-machined hex heads maximize torque application with wrenches or sockets for effortless extraction.
PRECISION IN EVERY PIECE - 25 extractors from 1/8” to 7/8” in 1/32” increments ensure you always have the perfect fit.

The Neiko 04204A Hex Head Multi-Spline Screw and Bolt Extractor Set is a professional-grade 25-piece toolkit designed to remove frozen, stripped, or broken screws and bolts with precision. Made from tough chrome molybdenum steel, each extractor features left-hand spiral teeth and hex heads for maximum torque and grip. Sized from 1/8” to 7/8” in 1/32” increments, this set is perfect for mechanics, DIYers, and pros who demand reliability and efficiency on every job.

Specifications

ASIN	B01KN9YVWA
Brand Name	Neiko
Country of Origin	USA
Customer Reviews	4.4 4.4 out of 5 stars (1,269)
Finish Types	Steel
Global Trade Identification Number	00816914020672
Included Components	Extractor Set, Multi-Spline Screw Set
Item Length	1.06 Inches
Item Type Name	Hex Head Multi-Spline Screw and Bolt Extractor Set \| 25 Piece \| 1/8” to 7/8” in 1/32” Increment \| Cr-Mo
Manufacturer	Neiko
Material Type	Chrome Molybdenum Steel
Model Number	04204A
Number of Flutes	3
Number of Packs	1
Number of Pieces	25
Part Number	1
Set Name	Neiko 04204A Hex Head Multi-Spline Screw and Bolt Extractor 25-Piece Set
Shank Type	Hex
Surface Recommendation	Metal
Tool Flute Type	Spiral
UPC	816914020672
Unit Count	1.0 Count
Warranty Description	no warranty available

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908 zł

Duties & taxes included

In stock

Sold byAmazon PolandDelivered 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 Poland.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

Vikram D.

The MOLLE sheath is of exceptional quality. Very happy with my purchase.

2 weeks ago

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