I thought this was an auto tapper, what is it?

J

Jeff Horton

Plastic

Joined

Mar 8, 2020

• Mar 8, 2020

• #1

I bought this ($4.35) on the long shot that it was some version of an auto tapper. The input shaft and the output shaft appeared to be tied together so I thought the clutch/torque limiting may be broke. Upon disassembly it appears the shaft is solid from input to output. Does anybody now what this is? Of course there is not a single letter of writing on it.

 

cyanidekid

Titanium

Joined

Jun 4, 2016

Location

Brooklyn NYC

• Mar 9, 2020

• #2

Looks like a “BIG Daishowa” or similar brand tapping head but a rigid one so no torque limiting? Are you sure there is no clutch if it had a different holder in it?

 

M

Metalo

Aluminum

Joined

Jan 4, 2008

Location

Clinton, Maryland

• Mar 9, 2020

• #3

I believe it is a Delta Commander Chipbreaker. I believe it facilitates a peck drilling function.

 

J

Jeff Horton

Plastic

Joined

Mar 8, 2020

• Mar 9, 2020

• #4

Thanks Metalo it looks like you solved the mystery. I was able to find a YouTube video with a guy using one and a sales flyer. Hopefully the link to the video and the flyer are attached.
, YouTube
Jeff

 

EPAIII

Diamond

Joined

Nov 23, 2003

Location

Beaumont, TX, USA

• Mar 9, 2020

• #5

Looks like a rare find. Perhaps even a better one than a tapping head.

I wonder why they don't make those today. Or do they?

BTW, if you are looking for a used tapping head, you might try Anderson Tooling, in Fairfield Iowa. It has been around 10 years since I visited them, but the last time I was there I saw a bunch of them on their shelves.

Anderson Tooling | Rigging Services and Used Tooling

No affiliation, I just liked them. And they helped me with the delivery of my Grizzly mill.

 

vanguard machine

Stainless

Joined

Dec 20, 2011

Location

Charleston and NYC

• Mar 10, 2020

• #6

yup! as stated it's an antique chip breaker.
should be a very handy addition to the DP for that nasty stringy stuff!


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Mike1974

Diamond

Joined

Nov 5, 2014

Location

Tampa area

• Mar 10, 2020

• #7

So I watched the video, but don't understand how it works? What does it do that you couldn't do by just occasionaly pausing on your downfeed pressure?

 

M

Metalo

Aluminum

Joined

Jan 4, 2008

Location

Clinton, Maryland

• Mar 10, 2020

• #8

According to the sales brochure the chip breaking action occurs every 3/4 turn of the drill. The result being very small chips.
I have one of these but I have never used it. I need a J33 taper chuck for it and have not gotten around to getting one.

 

D

DDoug

Diamond

Joined

Oct 18, 2005

Location

NW Pa

• Mar 11, 2020

• #9

vanguard machine said:

yup! as stated it's an antique chip breaker.
should be a very handy addition to the DP for that nasty stringy stuff!


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Click to expand...

Sounds like it will be GREAT ! on your DP's spindle bearings....why not just simply mind the quill handle when drilling ?

 

vanguard machine

Stainless

Joined

Dec 20, 2011

Location

Charleston and NYC

• Mar 12, 2020

• #10

digger doug said:

Sounds like it will be GREAT ! on your DP's spindle bearings....why not just simply mind the quill handle when drilling ?

Click to expand...

Am I the only one here that has power down feed? [emoji849] [emoji23]


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D

DDoug

Diamond

Joined

Oct 18, 2005

Location

NW Pa

• Mar 12, 2020

• #11

vanguard machine said:

Am I the only one here that has power down feed? [emoji849] [emoji23]


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Click to expand...

Me too on my small radial drill. But I simply engage and dis-engage the feed as needed.

That attachment would work good on an auto drill like a Snow (oh wait, they have their own device called a "woodpecker" that appear to interrupt the feed).

Probably why you never see these things much.

 

vanguard machine

Stainless

Joined

Dec 20, 2011

Location

Charleston and NYC

• Mar 12, 2020

• #12

digger doug said:

Me too on my small radial drill. But I simply engage and dis-engage the feed as needed.

That attachment would work good on an auto drill like a Snow (oh wait, they have their own device called a "woodpecker" that appear to interrupt the feed).

Probably why you never see these things much.

Click to expand...

yea, agree that it's a very niche item for sure. would still like to have it on the shelving though! but i clearly have a problem with hoarding tooling. i still have a pile of R8 crap and haven't owned anything with an R8 spindle in like a decade haha [emoji51]


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