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?

ENKAY - Heavy Duty Flex Shaft with 1/4 inch Keyless Chuck (56

36 (915mm) Total length. 6mm drive shank. Flexible drill shaft for use hard to reach areas Fits any drill that will accept this in its chuck. Steel

Flexible Flexi Twist Drill Shaft Drive Extension 36 with Keyless Chuck TE323

36 (915mm) Total length. 6mm drive shank. Flexible drill shaft for use hard to reach areas Fits any drill that will accept this in its chuck. Steel

Flexible Flexi Twist Drill Shaft Drive Extension 36 with Keyless Chuck TE323

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ENKAY - Heavy Duty Flex Shaft with 1/4 inch Keyless Chuck (56

DREMEL Flexshaft and a very simple FIX. Dremel