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 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

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

Product ID: 35133941

Details

Brand
NEIKO
Finish Type
Black Oxide
Material
Chrome Steel
Shank Type
Hex
Tool Flute Type
Spiral

🌀Left-hand spiral teeth for grip

🔩25 precision sizes 1/8"–7/8"

⚙️CrMo steel for max toughness

NT$4871

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔧 Don’t let broken bolts break your flow — extract with confidence!

BUILT TO OUTLAST - Premium chrome molybdenum steel ensures industrial-grade durability under high torque.
GRIP LIKE NO OTHER - Aggressive multiplane left-hand spiral teeth deliver faster, slip-free extraction.
ORGANIZED ON THE GO - Durable case keeps your set travel-ready for jobsite, garage, or home repairs.
TORQUE READY HEX HEADS - Precision-machined hex heads maximize wrench/socket torque for effortless removal.
PRECISION IN EVERY PIECE - 25 extractors in 1/32-inch increments cover every stubborn fastener size.

The NEIKO 04204A is a 25-piece hex-head multispline screw and bolt extractor set crafted from tough chrome molybdenum steel. Designed for professionals and DIYers, it features precision sizes from 1/8" to 7/8" in 1/32" increments, aggressive left-hand spiral teeth for superior grip, and hex heads engineered for maximum torque. Packaged in a durable case, it’s your ultimate solution for removing frozen, stripped, or broken fasteners quickly and efficiently.

Specifications

ASIN	B01KN9YVWA
Best Sellers Rank	#12,690 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #73 in Tap Extractors
Brand Name	NEIKO
Customer Reviews	4.4 4.4 out of 5 stars (1,297)
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 Type	Chrome Molybdenum Steel
Model	04204A
Number of Flutes	3
Number of Packs	1
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 Count

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NT$4871

Duties & taxes included

In stock

Sold byAmazon TaiwanDelivered 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 Taiwan.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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