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Tool Talk Discussion Forum

clarke drill press

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tyler mostia

04-29-2007 18:15:21




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i bought a drill press at a local auction, the chuck was missing so now i need to know what is the differance between them im looking on ebay for a jacobs that can fit 3/4 bits, there seems to be differant sized tapers anyone know how to measure or know what size tapper i need for the clarke drill press sold at TSC thanks alot




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SDE

05-05-2007 09:20:49




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 Re: clarke drill press in reply to tyler mostia, 04-29-2007 18:15:21  
Could that auction have been in Siren WI?



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vitzarus

04-29-2007 20:33:40




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 Re: clarke drill press in reply to tyler mostia, 04-29-2007 18:15:21  
Jacobs tapers(the 1st to come to mind was #33 so I"ll start there) The length from large dia to small is excactly 1.0 " The large dia is is .624" the small is .5605". the #33 was rated from 0-1/2"
There are many other combinations. One other thing to consider is the import chucks were crap copared to a Jacobs also many spindles had a hole in the center, LH thread to help secure the chuck after the tapers were mated.

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TimV

04-29-2007 20:29:15




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 Re: clarke drill press in reply to tyler mostia, 04-29-2007 18:15:21  
Tyler: Clarke is just TSC's house brand for the same China-made drill presses sold in many other locations (Harbor Freight, Grizzly, Northern Tool, etc.), so the chances are better than average that a replacement chuck for any of these of these presses of the same basic size as yours will fit. Attached is a link page from McMaster-Carr showing sizes of various tapers. Most of these have a Morse Taper (often a MT2 or MT3) that goes into the drill and then a Jacobs Taper that goes into the chuck. Depending on exactly what is missing you may be able to get just the chuck or you may need the chuck and also the double-ended adapter to fit both the chuck and the drill. Enco (www.use-enco) is a good supplier (reasonable prices, competent help, and quick shipping) for these items.

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Tim Casbolt

04-29-2007 18:51:50




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 Re: clarke drill press in reply to tyler mostia, 04-29-2007 18:15:21  
The owner's manual might have this information, or if you can track down the manufacturer's website, you should be able find out what taper was used in your spindle.

Most of the time, you pick whatever chuck you want, then order an adapter that gets you from the taper of the spindle to the taper of the chuck. MSC and Enco sell them at reasonable prices.

Most of the bigger drills have a 1/2" shank, so, unless you're planning to run big-shank drills, a 1/2" chuck should suit your needs. Do yourself a favor and get a ball-bearing chuck. It costs more up front, but will last longer and hold your drills tighter with less slippage.

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