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 screw thread to fix it like a Dremel shaft does. How do I avoid the twists? Do I need some extra part?

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Dremel rotary tool with Dremel flex shaft, Repairs & tips/Tricks.

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Dremel rotary tool with Dremel flex shaft, Repairs & tips/Tricks

Flexible shaft inner core, ideal for intricate work Length: 98cm / 3.22Ft; Inner Core Diameter: 4mm / 0.16; Chuck Diameter: 8mm / 0.31 Using a

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