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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🔧 Don’t let stripped screws slow you down—extract with confidence and style!

GRIP LIKE A PRO - Aggressive multiplane teeth with left-hand spiral design deliver faster, slip-free extraction.
READY WHEREVER YOU GO - Compact, durable case keeps your set organized and portable for on-the-go fixes.
PRECISION FIT FOR EVERY JOB - 25 extractors in 1/32" increments ensure you always have the perfect size on hand.
ENGINEERED FOR MAXIMUM TORQUE - Hexagon heads precision-machined for optimal wrench and socket compatibility.
BUILT TO WITHSTAND THE TOUGHEST - Crafted from premium chrome molybdenum steel for unmatched durability and torque resistance.

The Neiko 04204A Hex Head Multi-Spline Screw and Bolt Extractor Set is a professional-grade 25-piece toolkit designed to remove frozen, broken, and stripped screws and bolts efficiently. Made from tough chrome molybdenum steel with precision-machined hex heads and aggressive left-hand spiral teeth, it offers superior grip and torque. Sizes range from 1/8" to 7/8" in 1/32" increments, all housed in a durable, portable case—perfect for mechanics, DIYers, and pros who demand reliability and precision.

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Brand	Neiko
Item Length	1.06 Inches
Material	Alloy Steel
Finish Type	Steel
Number of Pieces	25
UPC	816914020672
Global Trade Identification Number	00816914020672
Manufacturer	Neiko
Country of Origin	USA
Item model number	04204A
ASIN	B01KN9YVWA

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

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