Replies

1. 
   Sphere | Jan 03, 2008 02:40am | #1

   Remove the inner screw (if prresent) eithet allen or straight in my exp.

   Then chuck an allen wrench in and hand tighten, whack allen wrench CCW as you face the chuck ( actually buying a replacement chuck FOR YOUR DRILL should have instructions)

   I recently had a makita chuck blow apart and after getting the screw out I still had no way to grab the old chucks parts and still get enough whackage on it to loosen.  I wound up taking it to a shop and was promptly informed that the NEW chuck was the wrong one ( I had supplied it, and it SAID it was for THAT Drill, so be careful shopping) and they ordered a new makita chuck, that I really didn't want to replace with.

   You can always try CCW and CW depending on the brand, useually they are pretty easy to get off...but once in awhile, ya get a killer.

   Spheramid Enterprises Architectural Woodworks

   "Success is not spontaneous combustion, you have to set yourself on Fire"

2. 
   IMERC | Jan 03, 2008 02:42am | #2

   left handed or #33 morese taper...

   put the largest allen wrench in the chuck that will fit by the arm...

   smack the body of the wrench with a BFH....

   don't pound it... "SMACK" it.... you'll be hitting the wrench so that in effect the the drill turns in reverse...

   BTW... be sure to remove the chuck's holding screw...

   that's down inside the chuck... that's a left hand thread too...

    

    

    

   Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming

   WOW!!! What a Ride!
   Forget the primal scream, just ROAR!!!

1. 
   junkhound | Jan 03, 2008 04:02am | #3

   that's a left hand thread too??

   Every drill with a threaded chuck I've ever dis-assembled (quite few) has a right hand thread on the chuck and LH on the internal screw.  Many later models have Torx head screws, older nearly all slotted.

   My old Sioux 3/4 drill has a #4 Jacobs taper, think the #33 (typical on small drill presses and some 1/2" drills) is also a Jacobs taper, not a Morse.

    

1. 
   IMERC | Jan 03, 2008 04:29am | #4

   so far...

   the Thor and Ingersoll both have #33 tapers.... says so on the chuck...

   let me fuss with a 35YO magnum and see what threads are on it... 

   Life is not a journey to the grave with the intention of arriving safely in a pretty and well preserved body, but rather to skid in broadside, thoroughly used up, totally worn out, and loudly proclaiming<!----><!----><!---->

   WOW!!! What a Ride!Forget the primal scream, just ROAR!!!