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.

Neiko 04204a Hex Head Multispline Screw And Bolt Extractor Set

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Rp1944924

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Description

🔧 Unlock stuck fasteners like a pro — never get sidelined by stripped screws again!

HEX HEAD POWER PLAY - Precision-machined hex heads maximize torque transfer when used with wrenches or sockets, making tough jobs effortless.
ORGANIZED READY TO GO - Compact, durable case keeps your set neatly stored and portable—perfect for professionals on the move or weekend warriors.
AGGRESSIVE SPIRAL DESIGN - Left-hand multiplane teeth bite deeper for faster, more secure removal of frozen or damaged screws and bolts.
PRECISION FIT EVERY TIME - 25 extractors in 1/32-inch increments ensure you always have the perfect size for any stripped or broken fastener.
BUILT TO WITHSTAND TORQUE - Crafted from premium chrome molybdenum steel, these extractors deliver industrial-grade durability and resist snapping under pressure.

The NEIKO 04204A Hex-Head Multispline Screw and Bolt Extractor Set features 25 industrial-grade chrome molybdenum steel extractors ranging from 1/8" to 7/8" in 1/32-inch increments. Designed with aggressive left-hand spiral teeth and precision hex heads, this set delivers superior grip and torque for removing frozen, broken, or stripped fasteners quickly and efficiently. Packaged in a durable case, it’s the essential toolkit upgrade for mechanics, DIYers, and professionals who demand reliability and precision.

Specifications

ASIN	B01KN9YVWA
Best Sellers Rank	#10,691 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #60 in Tap Extractors
Brand	NEIKO
Brand Name	NEIKO
Customer Reviews	4.4 out of 5 stars 1,274 Reviews
Finish Type	Black Oxide, Black Phosphate, Chrome, Painted, Steel
Finish Types	Black Oxide, Black Phosphate, Chrome, Painted, Steel
Global Trade Identification Number	00816914020672
Included Components	Extractor Set, Multi-Spline Screw Set
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	Chrome Molybdenum Steel
Material Type	Chrome Molybdenum Steel
Model	04204A
Number of Flutes	3
Number of Pieces	25
Part Number	1
Set Name	25-Piece Set
Shank Type	Hex
Surface Recommendation	Metal
Tool Flute Type	Spiral
UPC	816914020672
Unit Count	1.0 Count

Reviews

C**H

15.12.2023

S**R

14.09.2025

C**N

12.04.2026

S**E

20.03.2023

S**C

17.06.2023

F**A

22.03.2026

D**D

18.10.2025

A**O

10.05.2025

A**K

28.09.2023

J**K

14.05.2025

R**.

2.01.2026

R**O

21.07.2024

C**A

12.12.2025

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Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

Rp1944924

Duties & taxes included

In stock

Sold byAmazon IndonesiaDelivered 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 Indonesia.

Secure transaction

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NEIKO 04204A Hex-Head Multispline Screw and Bolt Extractor Set, Easy-Out Screw Extraction, Broken Bolt Remover, Stripped Fastener Tool, 1/8 Inch to 7/8 Inch in 1/32-Inch Increments, CrMo, 25 Pieces

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