I can't open this dremel Chuck. Used liquid wrench and try to open carefully. any suggestions?

I’m late to the party (1/20/21) but had the same issue. However my new 4300 Dremel chuck was stuck when it came out of the box. I never got a chance to take the chuck off. Jill O’s. advice from 2014 was helpful but I couldn’t find a small enough drill bit. I used the opposite end of the small wrench that came with the Dremel. I stuck the end of the wrench between the chuck and the plastic EZ Twist lock. I tapped the wrench with a piece of wood and did this continuing around the base. The chuck unlocked and the teeth opened.

Does this work with the Milwawkee 12v rotary tool? Amazon advertises them together

It seems to work with any kind of rotary tool. I have both a dremel and a black&decker and it seems it is a standard size that fits all.

Will this work with a Wen rotary tool, specifically the 101 piece kit here on Amazon?

Can't believe the hours I spent trying to get the shaft size information for my 2 rotary tools. (Wen and Katonah) (or is it called "a shank"? I'm new to this world of rotary tools.) Even called Wen and the guy didn't know the size. Even Dremell doesn't give the size of the Multi Chuck hole. It only gives the Dremell models it works with. Anyhow, the collet nuts are interchangeable on both my tools so I figured it was a standard size. I bought a knock off Multi chuck at Ebay and, at least the guy put the measurements of the hole in the picture. It was .7cm. Unfortunately, that is also the size of both my rotary tool shafts/shanks so, the multi chuck was too small to screw on to the rotary tools I have. But, I am glad I came across this answer since, I almost bought a Dremell Multi Chuck. It too is too small. Saved me about 10 bucks and another disappointment. Thanks.

will it fit black and decker RTX?

Yes. I bought one to use with my RTX-B rotary tool and it works much better than the collet that came with the tool.

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Dremel 4486 Keyless Chuck - Ideal for 1/32” (0.8mm) to 1/8” (3.2mm) Shank Rotary Tool Accessories

Dremel 4486 Keyless Chuck - Ideal for 1/32” (0.8mm) to 1/8” (3.2mm) Shank Rotary Tool Accessories

Product ID: 258105674

Details

Brand
Dremel
Compatible devices
Dremel rotary
Item diameter
0.03 Inches
Item weight
0.01 Ounces
Material
Plastic

🔧Fits 1/32” to 1/8” shank sizes

⏱️Keyless design for ultra-fast bit changes

⚙️3-jaw steel chuck for secure grip

€ 28.10

Duties & taxes included

In stock

Sold byAmazon GreeceDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

⚡ Unlock your Dremel’s full potential—fast, flexible, flawless!

PRECISION GRIP - Steel 3-jaw chuck ensures a rock-solid hold on bits from 0.8mm to 3.2mm.
EFFORTLESS BIT SWAPS - Change accessories in seconds—no wrench or collet needed.
COMPACT LIGHTWEIGHT - Weighs just 0.01 oz, adding zero bulk to your toolkit.
LIGHT DUTY POWERHOUSE - Perfect for drill bits, sanding drums, polishing wheels, brushes, and cut-off wheels.
UNIVERSAL COMPATIBILITY - Works seamlessly with all Dremel rotary tools, including Flex-Shaft and Right Angle attachments.

The Dremel 4486 Keyless Chuck is a lightweight, steel 3-jaw chuck designed for quick, tool-free accessory changes on all Dremel rotary tools. Compatible with shank sizes from 1/32” to 1/8”, it supports a wide range of light-duty accessories, enhancing efficiency and versatility for precision tasks.

Specifications

ASIN	B0000302ZV
Best Sellers Rank	#4,720 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #2 in Power Drill Chucks
Brand	Dremel
Brand Name	Dremel
Capacity	0.13 inches
Compatible Devices	Dremel rotary tools
Compatible devices	Dremel rotary tools
Customer Reviews	4.6 out of 5 stars 13,460 Reviews
Global Trade Identification Number	00080596011796
Handle Type	hand-tightened
Included Components	(1) Keyless Check
Item Diameter	0.03 Inches
Item Part Number	4486
Item Type Name	Dremel 4486 Keyless 3-Jaw Chuck, Accepts 1/32” to 1/8” Shank
Item Weight	0.01 Ounces
Item diameter	0.03 Inches
Item weight	0.01 Ounces
Lock Type	Combination, Keyless, Self-Locking
Manufacturer	Dremel
Manufacturer Part Number	4486
Material	Plastic
Material Type	Plastic
Model Number	4486
Thread Size	1/32" do 1/8" (0.03125 do 0.125 cala)
Thread size	1/32" do 1/8" (0.03125 do 0.125 cala)
UPC	080596011796
Unit Count	1 Count

Reviews

B**R

Great

Great convenient tool

24.01.2026

M**.

smart idea add to gears

Thanks 🙏A lot

11.01.2026

G**S

Perfect match for Milwaukee Rotary!

Purchased this to utilize on my cordless Milwaukee rotary tool and it is a perfect fit!

3.03.2024

A**R

جيد ولكن السعر مرتفع

9.03.2024

J**Z

PRÁCTICA Y DE CALIDAD

Es una boquilla perfecta para hacer cambios rápidos de brocas. Eso sí, hay que mirar en las instrucciones que no es válida para todas ellas. Por lo demás, gran calidad y muy práctica.

20.06.2025

A**U

Ucuz kalitesiz

Fiyatına göre bir ürün orijinali gibi beklentiye girmeyin

29.04.2022

R**K

Top

Mega nützlich kein schraubschlüssel mehr notwendig macht alles viel einfacher

30.03.2019

C**N

Best attachment!

These universal keyless chucks are one of the best attachments for the Dremel. Makes changing bits very easy and quick and you don't have buy the stock Dremel bits either this will take other brands. Sometimes they will loosen up if you don't tighten them enough but that is not their fault. You just need to make sure they are tight and check it when you are working so you bits don't fly out - you can usually tell before it is too late.

13.07.2024

M**K

Good buy

Happy

18.01.2024

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