will this fit my Dremel 3000 rotary drill?

YES, collet nuts are the same size for all Dremels and other brand rotary tools such as Milwaukee.

Can this be used on the Dmel 7300

I am not sure, but I think so. The product description states the ones it does not work with, and the 7300 is not on that list. It fits my Black and Decker, and the various colletts allow for me to use just about any accessory made for any rotary tool, and also twist drill bits. I hope this helps

Will these work in the 4200 with the "EZ Change" system?

I own a basic 2 speed dremel so I can't answer with 100% assurance but my guess is NO. At the very least, the collet "nut" that is supplied will not work on your unit (is in fact replaced by the EZ change system). Also, the dremel website says the EZ402 mandrel is for use with "...exclusive EZ lock accessories.".

regarding the nut's threads, do they begin at the edge, or 1/2" down inside (on the end you screw on with)??

They begin 1/2" down If you are talking about the nut with the female threads.

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Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

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الحساب عربة التسوق

Dremel 4485 Quick Change Rotary Tool Collet Nut Set Medium

Dremel 4485 Quick Change Rotary Tool Collet Nut Set Medium

Product ID: 283262404

Details

Brand
Dremel
Compatible devices
Drilling
Item diameter
0.13 Inches
Item weight
0.02 Pounds
Material
Metal

⚡Quick-Change collet nut for fast swaps

🔩5-piece precision collet set

🛠️Compatible with all Dremel rotary tools

E£ 2082

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

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Description

🔧 Upgrade your rotary game with precision and speed!

SPEED UP YOUR WORKFLOW - Quick-Change collet nut lets you swap accessories in seconds—no downtime, just productivity.
COLOR CODED CONVENIENCE - Brown-coded collets make accessory selection intuitive and hassle-free.
UNIVERSAL COMPATIBILITY - Works seamlessly with all Dremel corded and cordless rotary tools for ultimate versatility.
TRUSTED USA BASED SUPPORT - Access expert help anytime via chat, email, or phone from Dremel’s Racine, WI service center.
PRECISION FIT FOR EVERY BIT - Four collet sizes (0.8mm to 3.2mm) ensure a secure grip on all your rotary bits.

The Dremel 4485 Quick Change Rotary Tool Collet Nut Set includes four precision collets (0.8mm, 1.6mm, 2.4mm, 3.2mm) plus a Quick-Change collet nut, compatible with all Dremel rotary tools. Designed for fast accessory swaps and secure bit clamping, this set enhances your tool’s versatility and efficiency, backed by dedicated USA-based customer support.

Reviews

User

good

Arrived on time. Very nice.

12.07.2023

User

Alternatieve spankop

Een dergelijk alternatief voor een dremelspankop.

12.05.2026

User

satisfied

So glad to not have to go to a hardware store

13.07.2026

User

とても精密

手に入らない物だと諦めて改良して使っていましたが､アマゾンさんで本品を手に入れる事が出来て大変助かりました。今までとは比べられないほど作業がはかどりとても嬉しいです。次回も宜しくお願いします。

30.01.2026

User

Good buy

Happy

18.01.2024

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TrustScore 4.5 | 7,300+ reviews

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Excellent communication throughout the order process. Product is perfect.

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E£ 2082

Duties & taxes included

In stock

Sold byAmazon EGYPTDelivered 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 EGYPT.

Secure transaction

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TrustScore 4.5 | 7,300+ reviews

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2 weeks ago

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1 month ago

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Asin	B0000302Z6
Best Sellers Rank	#11 in Router Collets
Date First Available	1 January 2024
Department	Unisex-Adult
Is Discontinued By Manufacturer	No
Item Model Number	4485
Manufacturer	Dremel
Product Dimensions	20.83 x 7.62 x 5.08 cm; 9.07 g

Dremel 4485 Quick Change Rotary Tool Collet Nut Set Medium

Details

Details

Description

Specifications

Reviews

Common Questions