HELP - Dismantling older Dremel flex shaft tool

Hello, I have an older style Dremel flex shaft tool (model 255-T2) as per the stock pictures. The issue is that the flex shaft "core"

Comprehensive Dremel 4000 Review – After 1 year of use – Mainly Woodwork

Dremel Flexible Shaft 225

I bought this flex shaft to use with my electric drill (kinda like img 2) but when it touches my work the shaft gets all twisted. The part indicated doesn't have a

Dremel 1.2 Amp Corded Variable Speed Rotary Tool Kit 3000-2/28 - Acme Tools

Make it easier, simpler, and more affordable to groom your pet in the comfort of your home. The 7350-PET is the latest in Dremels easy-to-use and easy-to-charge pet nail grooming products. Featuring the latest in battery technology, the 7350-PET will be the entry-level nail grinder for pet owners. The 7350-PET is 7% quieter than the top-selling 7300-PT, helping keep your pet relaxed during grooming sessions.

Dremel 7350-PET 4-Volt Pet Grooming Cordless Rotary Tool Kit

How do I remove the old an add the new? : r/ender3

How to Start Cleaning and Polishing

7760-N/10 Rotary Tool Kits Up to 6V

Dremel Flex Shaft How To Attach: A Beginner's Guide