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                        Wobbling bits in dremel chucks.

                        5948 views
                        2 replies
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                        shoot&scoot
                        • Member since
                          March 2010
                        Posted by shoot&scoot on Saturday, March 27, 2010 11:43 PM

                        Thanks for the info SF.  Picked up a good set from Gard Engineering last year and so am not afraid to use them in the Dremel.  They use powdered metal technology and are kind of spendy but I haven't broken one yet.  My main beef was getting them to run true in the chuck.  Normally if I only need a few holes I'll use a pin vise, but for a lot of holes in soft material the Dremel sure saves time.

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                        SuppressionFire
                        • Member since
                          September 2007
                        • From: Truro Nova Scotia, Canada
                        Posted by SuppressionFire on Saturday, March 27, 2010 9:26 PM

                        Indeed, high speed motor tools and wobbly bits is a bad combination. I usually hand drill small holes and even that can be difficult with a bent bit. Sounds like you had debris in the chuck from before, or possibly a manufactures defect on the chuck itself? I only use the Dremel for drilling scale holes when secured in the drill press stand, even that has its challenges. I usually buy multiple small bits as they are very prone to breakage, also a few dollars more on a quality set goes further than a fist full of cheaper ones. 2 cents

                        http://i6.photobucket.com/albums/y211/razordws/GB%20Badges/WMIIIGBsmall.jpg

                         

                         

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                        shoot&scoot
                        • Member since
                          March 2010
                        Wobbling bits in dremel chucks.
                        Posted by shoot&scoot on Saturday, March 27, 2010 9:10 PM

                        I don't know about the rest of you but I have been having all kinds of problems getting drills (or any other bits for that matter) to run true in my Dremel chucks.  I never have figured how to take them apart to clean them and trying to blow them out with compressed air had no effect, either did blasting them with brake free or other lubricants.  Out of frustration I took the chuck off of the tool and proceeded to spin the chuck teeth in the chuck housing and lo and behold, a fair amount of GREASE covered crud came out.  A staight dental pick seemed to work the best.

                        I then proceeded to clean out the chuck with degreaser and lubed it with fine graphite powder.  Just got done drilling a hole with a #80 bit and had zero run out. It's like having a new tool!  Maybe I'm just ignorant and all of you other guys have already figured this out but if you haven't, give it a try and let me know how it works.

                                                                                                              Pat.

                        P.S.  If you do any grinding using the chuck as a tool holder you'll have to clean it after each use. 

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