Author Topic: A small tapping jig (Read 3453 times)

Wolfeknives · « **on:** December 30, 2018, 11:57:31 PM »

Something similar may have been shown here before, but I thought this may be of interest to someone. I made this simple jig for tapping small holes many years ago. It has tapped may hundreds of holes. The jig is made from a scrap piece of 1" thick aluminum, but any metal will work. It makes it easy to tap perpendicular holes into small parts, and has resulted in almost zero broken taps.

shifty · « **Reply #1 on:** December 31, 2018, 03:17:39 AM »

Very nice!

Acer Saccharum · « **Reply #2 on:** December 31, 2018, 04:32:58 AM »

That's really nice (and ingenious!)

redheart · « **Reply #3 on:** December 31, 2018, 07:28:29 AM »

I love that thing.

I'd buy one!

Curtis · « **Reply #4 on:** December 31, 2018, 09:11:41 AM »

Great idea!!!

Curtis

Tim Crosby · « **Reply #5 on:** December 31, 2018, 04:04:31 PM »

Really cool! I can see a lot of possibilities for it.

Tim C.

Bob Roller · « **Reply #6 on:** December 31, 2018, 04:22:32 PM »

Quote from: Tim Crosby on December 31, 2018, 04:04:31 PM

Really cool! I can see a lot of possibilities for it.

Tim C.

I'm assuming the knurling doesn't interfere with the accuracy,

Bob Roller

Wolfeknives · « **Reply #7 on:** December 31, 2018, 04:31:03 PM »

Bob, the knurling sits in a relieved area. It does not reach the bearing surface of the chuck, so no problem with accuracy or wear.

Wolfgang

P.W.Berkuta · « **Reply #8 on:** January 01, 2019, 07:41:16 PM »

Mighty fancy tool

. a Little bit "overkill" but it is very nice. A lot of machinists make a tapping block for this kind of work. All that is needed is a 1" square block (or so) of metal with a hole drilled through the center of the block the O.D. size of your tap. You place the block over the hole you want to tap and insert the tap into the block and tap away

.

D. Taylor Sapergia · « **Reply #9 on:** January 01, 2019, 08:16:06 PM »

Very clever Wolfgang. Do you have a jig for using a die to thread a rod, such as a screw shank?

flehto · « **Reply #10 on:** January 03, 2019, 05:35:10 PM »

When I was a tool and diemaker we had a similar tool but the tap was in the vertical position....a little easier to use. Just rotate yours 90 degrees......Fred

Wolfeknives · « **Reply #11 on:** January 04, 2019, 06:04:20 AM »

Taylor, I rarely have to make screws or thread rods at this point. I made this little jig to thread holes for very small screws in my folding knife parts. I will be using it for some lock work now that I am finally taking some time to work on/build some flintlock rifles.

I keep this on my work bench along with the 4 or 5 taps I use most often. It is quick and easy to change tap sizes, and it can be placed in any position in my vise. In the pictures above I am tapping titanium. It is difficult, and I like to watch the tap while it is cutting, hence the horizontal position. Carbon steel taps easy, no problems.

Wolfgang

Greg Pennell · « **Reply #12 on:** January 04, 2019, 06:11:21 AM »

Nice little jig, I think I’m going to make one.

Greg

Bob Roller · « **Reply #13 on:** January 04, 2019, 05:05:15 PM »

Quote from: Bob Roller on December 31, 2018, 04:22:32 PM

Quote from: Tim Crosby on December 31, 2018, 04:04:31 PM
Really cool! I can see a lot of possibilities for it.

Tim C.

I'm assuming the knurling doesn't interfere with the accuracy,

Bob Roller

OK,NOW I can see the knurling can't interfere with the function
of this neat tool.I changed to my close quarters reading glasses

Bob Roller

sydney · « **Reply #14 on:** January 05, 2019, 12:47:01 AM »

Hi I must be slow--I can t see why the tap handle is not riding on the knurling
Someone please explaining
Sydney

Wolfeknives · « **Reply #15 on:** January 05, 2019, 02:11:58 AM »

Quote from: sydney on January 05, 2019, 12:47:01 AM

Hi I must be slow--I can t see why the tap handle is not riding on the knurling
Someone please explaining
Sydney

This will show it better Sydney, the knurling is below the outer surface of the chuck.

Wolfgang

sydney · « **Reply #16 on:** January 05, 2019, 02:14:20 AM »

Thanks

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