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Removing kmart drill chuck


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leithal_weapon



Joined: 06 Jun 2016
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Location: Canberra


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Removing kmart drill chuck

I just got a 18V kmart drill, trying to follow instructions from http://www.robowars.org/wikka/DrillHacking101

I got the chuck screw off, but after that how do I get the chuck off?

Post Tue Jun 07, 2016 1:57 pm 
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Glen
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tighten an allen key in the chuck and whack it with a hammer in the counter clockwise direction. That'll bust the chuck loose from its thread.
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Post Tue Jun 07, 2016 2:17 pm 
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leithal_weapon



Joined: 06 Jun 2016
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Thanks, that worked. Now to figure out how to screw the chuck locked in

Post Tue Jun 07, 2016 2:43 pm 
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leithal_weapon



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Glen, did you figure out what size grub screw to use on this drill?

I will go to Speciality Fasteners tomorrow to get the screw and taps.

Post Tue Jun 07, 2016 5:41 pm 
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Glen
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M5 usually. Not sure if the new style kmart ones are bigger.
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Post Tue Jun 07, 2016 5:51 pm 
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Philip
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If you force the grub screws in without tapping, the grub screws stay in better.
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Post Tue Jun 07, 2016 5:53 pm 
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evil_steve



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Can confirm the Kmart drills still take m5 x 8mm grub screws.

Post Tue Jun 07, 2016 6:42 pm 
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seanet1310



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I agree with Phil, don't tap. The extra friction of a poor thread is a good thing. Tap should rip though the drill body.
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Post Tue Jun 07, 2016 8:04 pm 
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marto
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You only need to fill about 4 of the holes. And the cheapest source of the grub scews was ebay if you buy 50/100.

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Post Tue Jun 07, 2016 9:16 pm 
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Philip
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Marto is correct. You only need to put in a limited number of grub screws to hold the gear. However, dust and other debris can enter though the open holes. For this reason I filled every hole in drill gearboxes.
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Post Wed Jun 08, 2016 3:29 am 
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leithal_weapon



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Thanks everyone, Ill let you know how it goes.

Post Wed Jun 08, 2016 12:07 pm 
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leithal_weapon



Joined: 06 Jun 2016
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Just tried the M5 x 8mm grub screws they are too small, they slip right in and out of the hole.

Post Wed Jun 08, 2016 4:44 pm 
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evil_steve



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Sorry, just noticed you're using an 18V kmart drill, not 12V, obviously they're different. They didn't seem to be selling the 18V when I bought mine a while ago.

Post Wed Jun 08, 2016 7:21 pm 
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Ondray



Joined: 06 Jul 2015
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I can pull my 18V apart on the weekend to see what size you need if you want.

Post Wed Jun 08, 2016 7:58 pm 
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leithal_weapon



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That would be handy, otherwise I can find someone with some calipers.

Im also figuring out which washers will work to mount the wheels. Ive got one thats too big, and one thats too small.

Post Wed Jun 08, 2016 8:56 pm 
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