Obtaining a manual

Question edited for clarity to add Maker.
Question moved to Make Model category.

The lock button should lock the shaft. With the collet facing you, turn anti-clockwise with grips or pliers. They should never be done up _that_ tight. Try spraying with penetrating oil. Two version of the manual below.

DREMEL OF Multi 395

https://docs.rs-online.com > ...
PDF
the better products of its kind. • To get the optimum benefit from the tool we advise you to read this instruction manual thoroughly.

DREMEL Moto-Tool Owner's Manual

https://neurophysics.ucsd.edu > Manuals > Dremel
PDF
DREMEL. Moto-Tool Owner's Manual. Models 275, 285, 395, and 595. 3. HONESTLY NOW... Have you read this. OWNER'S MANUAL? This manual will tell you how to get ...
11 pages

YES.
DREMEL HAS THAT PART AT ABOUT $2.00 AND SHIPPING ABOUT $2.50.
CALL 1-800-437-3635.

You will most likely need to purchase a used parts unit - look on Ebay they're very cheap.

Gary @ Fix Ya

http://www.dremel.com/en-us/projectsandcommunity/projects/Pages/default.aspx

this website is directly from dremel. It shows different projects, crafts, or hobbies you can use it for. It is a real simple tool to use, and also is very handy. You can obtain several types of bits for it ones for sanding, engrving, cutting all types of materials, and much much more. Hope this helps

you can go to Dremel.com and they have a toll free number for assistance or they can furnish a downloadable schematic for this tool. so you can find the cupling

http://www.condeyor.com/Dremel_Scroll_Saw_571.htm

The part that goes between the motor and the chuck is called the CLUTCH UNIT,
REF 2615294309 it is a splined rubberised sleeve, it also fits the 276 and 396.
The price is £3.69 (including vat at17.5%) and can be obtained from Jaymac (Derby) Ltd.
http://www.dremel-direct.com/acatalog/service.html

MANUAL MAY BE AVAILABLE ON THE
INTERNET. INPUT MAKE AND MODEL OF
TOOL

You can either go to Dremel.com and type in your model number for replacement parts or call their toll free number at 1-800-437-3635 and get that information. Let me know if you need anything further

You can go to Dremel.com and find assistance or call their toll free number at 1-800-437-3635 and speak with their tech assistance. Let me know if you still need more help. Also I tried using the model number provided and it came up empty that is why I am directing you to this site yourself.