8-40 tap?

i get them from china usually pay around 10 bucks for tap and drill . i can honestly say i haven't broken one yet . but i am careful i have gotten them from the us yes they are better . but the wait time is terrible and cost is 5 times more .
 
FatCatsDad said:
Do not use taps in a drill, this will cut down how many break...LOL

Ive seen stupid people do it.

I've also seen stupid people using taps by continually turning them in never out/in.

I've also seen stupid people tap holes with no cutting fluid.

Some people shouldn't use tools

These are usually the same types of people that don't clamp their work in a drill press.
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The one time I've seen all of these crimes gotten away with at the same time was with some new racks that had the mounting holes drilled and tapped before a coat of paint went on, and the tap in the electric screwdriver was just to clear the paint out of the threads.
 
If you can set your item flat and level on the drill press plate and putting the tap in the chuck isn't such
a horrible way to start a tap straight iff'in you turn the chuck by hand.

Gitter started straight and they do the twisty in'owt thing with lewb.
 
kamlooky said:
If you can set your item flat and level on the drill press plate and putting the tap in the chuck isn't such
a horrible way to start a tap straight iff'in you turn the chuck by hand.

Gitter started straight and they do the twisty in'owt thing with lewb.
Click to expand...

True. Helps with getting them started straight. - dan
 
kamlooky said:
If you can set your item flat and level on the drill press plate and putting the tap in the chuck isn't such
a horrible way to start a tap straight iff'in you turn the chuck by hand.

Gitter started straight and they do the twisty in'owt thing with lewb.
Click to expand...

particularly useful with shallow blind holes where a bottoming tap is your only option!
 
Most small "T" style Tap Handles have a Divot in the end where a point can be placed in the drill chuck of a bridge port or drill press. as long as your work piece is set up square, this allows you to easily start the tap straight.

 
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useful on a lathe, on a drill press, just put the tap right in the chuck
 
pointandshoot said:
Throwing it out to all the guru's here...do any of you guys know where I might be able to source a 8-40 tap from? Prefer GVRD if possible just because shipping make it non feasible.
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Got a 3-tap set (spiral point, taper and bottoming) off Amazon not too long ago. Free shipping is always my favourite. You need a #28 drill too. A 9/64 is close, but the extra thou or two could make it a bit sloppy for gun work.

There must be several good industrial supply stores in Vancouver.
 
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FatCatsDad said:
Do not use taps in a drill, this will cut down how many break...LOL

Ive seen stupid people do it.

I've also seen stupid people using taps by continually turning them in never out/in.

I've also seen stupid people tap holes with no cutting fluid.

Some people shouldn't use tools

These are usually the same types of people that don't clamp their work in a drill press.
Click to expand...

I must be really stupid, as I have tapped more thousands of holes than I care to remember, almost all with a hand drill.
Having said that, I wouldn't use it for smaller than #8, and definitely not for a blind hole.
Hand drill tapping is industry standard for production machining where it isn't worth the time/effort to set up the mill or lathe to include it in the cycle.
 
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