Help ordering replacement chisel & bit for my Delta Hollow Chisel Mortiser 14-651

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Forum topic by mtkate posted 06-22-2010 01:38 AM 7468 views 0 times favorited 10 replies Add to Favorites Watch
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2049 posts in 3593 days

06-22-2010 01:38 AM

Topic tags/keywords: mortise delta 14-651 chisel and bit

Here I am spending tons of time trying to get to Delta during business hours… researching on the internet… and I did not even bother to ask the experts!

I need to order a new 1/4” bit for my delta mortising machine model # 14-651 and by doing some search I know quite a few of you have it but could not find this question answered previously.

For the life of me, I cannot locate the part number for the chisel and bit! It’s certainly nowhere to be found on the delta site. When I called my tools shop, they wanted the part number as there are a variety of lengths of bits, etc. etc.

I think I located it (model # 17784) but before I go for it I wanted to know if someone else ordered it before. If you ordered other than a replacement – what brand/model did you order and did you like it?

Thanks in advance!

10 replies so far

View a1Jim's profile


117464 posts in 3844 days

#1 posted 06-22-2010 01:50 AM

Try here

and then click on related items

-- wood crafting & woodworking classes

View davidpettinger's profile


661 posts in 3468 days

#2 posted 06-22-2010 01:51 AM

Sorry, I use the Grizzly chisels in hollow mortiser. But you want a 17-908 by Delta.

-- Methods are many,Principles are few.Methods change often,Principles never do.

View hairy's profile


2783 posts in 3799 days

#3 posted 06-22-2010 01:51 AM

Maybe it’s here?

-- My reality check bounced...

View mtkate's profile


2049 posts in 3593 days

#4 posted 06-22-2010 02:01 AM

No Hairy – that was my problem. The chisels & bits that come with the mortiser are considered extras so they don’t show up in the parts list. I kept my manual of course, and it was nowhere in there.

Both Jim’s and UnionLabel are good direction. Looks like I need to order 143996 but I will ask about the 17908 as it seems to be a more “robust” version based on the price (it’s 3X the price of the 143996! Maybe that’s why I broke it so easily …. it died in maple).

View ChuckV's profile


3188 posts in 3794 days

#5 posted 06-22-2010 02:14 AM

I just got a 1/4” hollow mortise chisel and bit from Lee Valley here:,180,42240,53317

It is not the cheapest and not the most expensive. So far, it has worked great in my Powermatic machine I am not sure what the requirements are for your Delta, but the LV page gives enough specifications that you should be able to tell if it would work.

-- “Big man, pig man, ha ha, charade you are.” ― R. Waters

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Bob #2

3810 posts in 4289 days

#6 posted 06-22-2010 02:21 AM

Try these:,180,42240,53317

-- A mind, like a home, is furnished by its owner

View jusfine's profile


2422 posts in 3193 days

#7 posted 06-22-2010 05:36 AM

The Lee Valley chisel will definately fit your Delta. I have the same machine.

-- Randy "You are judged as much by the questions you ask as the answers you give..."

View mtkate's profile


2049 posts in 3593 days

#8 posted 06-24-2010 12:48 AM

Thanks all. I finally got 10 minutes during the business day and ordered the 17-908 at my local retailer to fill the current need. I called Delta to validate that it was the pro grade. I will also look into a full new set with Lee Valley… And keep the default ones for soft wood.

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Bob #2

3810 posts in 4289 days

#9 posted 06-24-2010 01:13 AM

Personally , I’d just get the better one that I used all the time at Lee Valley and use the regular ones for rough stuff.
The diamond hones they sell are indispensable.


-- A mind, like a home, is furnished by its owner

View mtkate's profile


2049 posts in 3593 days

#10 posted 06-24-2010 03:03 PM

I am even betting if I order from Lee Valley today, I will get the goods faster than my local tool shop will get the one stock part.

The last order I did from them – it was in my local post office in 3 days.

I’ll get the hone as well. I have Neil’s post about sharpening the hollow chisel bit favorited and ready to go.

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