‘This thing’ is called a drift

I see tons of runout on the new chuck.. also jt33 is not the part number it stands for jacobs taper 33

@jefffromjersey52

6 ай бұрын

I think his drill bit was probably SHOT .. the Keyless chukh is probably ok .. but you can still get like .005 " runout on them, they are not perfect ..

@TobaccoTooling

4 ай бұрын

lol exactly what I was thinking 😂

if the wobble was caused by metallic debris or dirt between your old arbor and spindle interior, you new cluck/arbor is going to wobble as well, even a premium one. Please update this video instructing to clean both your new arbor (they come greased to avoid rust forming during transit) and spindle insides with kerosene or alcohol. A clean and neat metal to metal surface contact is needed to keep the arbor and chuck in place. Also , if you got your new chuck and arbor as separate pieces, you need to clean the protection grease from bot JT33 ends before connecting them. Do not push you chuck up your spindle with a metallic hammer, you'll damage your chuck, use a rubber hammer or a piece of wood between your regular hammer and chuck, a couple of firm strokes will do, but just "getting it up there" with a quick trust will not be good enough, it migth stay up without falling, but the first time you apply any considerable lateral force on your drill bit you chuck will fall.

@EpicTim

Жыл бұрын

Those are great tips! Thanks for sharing!

Getting paid tomorrow and this is the first thing im buying!

Beautiful boss! Good tip

Keyless chucks are great but don't think they can't be screwed up with bad practice. They are taper mounted to the shank and can be broken loose if you try to use a large reduced shank drill which may ruin the chuck , the shank or both. To avoid this , never exceed the rated size of the chuck with a larger reduced shank drill. I learned this the hard way and am giving you all the chance to avoid my mistakes.

THANK YOU!

My old chuck had 40 thousandths runout, but the adapter MT2-JT3 was just fine, so I found a JT3 chuck, 5/8". (good ones are maybe $75 and great ones $200) I tried the runout in various orientations am down to about 0.004". I really would suggest getting a cheap dial indicator if you don't have one before you start throwing money at a crappy drill press.

😂2:31....0,4 mm run out minimal...adjust it with a rubber mallot

There is also a key used to tighten the chuck it goes in the holes on the chuck similar to one on a mill.

@EpicTim

2 жыл бұрын

truthfully the taper adapter is where most of the precision is

@steeplecab

7 ай бұрын

I believe what you're referring to is called a spanner wrench. It works with the geometry of the keyless chuck and the hole in the tightening ring to tighten the chuck beyond hand tight.

OR, If you know how to RE CONDITION a Chuck .. you can easily get it to within .002" Run out .. which is HALF of what the Keyless Chuck guarantees you out of the Box ..004- .005. It's very similar to how a Lathe Chuck Works, and those get adjusted every time you run a Part to get it perfectly centered.. On a Drill press Chuck you have to Grind all 3 Fingers / Jaws to grip at exactly the same time ,, which is not easy, but it can be done if you know how to do Surface Grinding ,and Lapping, sometimes its as easy as removing some Burrs which have been caused by mishandling the Chuck over time .

JT33 is the taper. Jacobs Taper 33

But they also take up more space, length.

Would those parts work on any drill press or do you have to find out what size you need depending on brand ?

@EpicTim

2 жыл бұрын

most "residential" floor standing drill presses would use this size but you should double check before purchasing.

The key for that chuck is called a Gardner bender

@steeplecab

7 ай бұрын

Gardner Bender is a brand name of an electrical supplier. I believe what you need is a spanner wrench.

The tapered thing is also known as a "drift ".

@larryproffer8603

5 ай бұрын

and you inserted it upside down.

@EpicTim

5 ай бұрын

Oops!!!!

how do you plan on ever getting that chuck back out, it doesnt have the tang on the end of the arbor

@EpicTim

2 ай бұрын

Sticks up enough where the regular drift works fine

Could you bore a hole with a drill press? Say from a 1/2in to 15mm?

@EpicTim

2 ай бұрын

Depends on the tolerance you need, this is not going to get you fine precision. Better than factory....

I want to through bolt my spline for simple milling any ideas on a replacement hollw spline assembly

@EpicTim

3 ай бұрын

That's beyond me

@ahill7099

3 ай бұрын

@EpicTim thank you for the response.. great vids hope u have a great day

Work in a Wen 4214t as well?

@EpicTim

4 ай бұрын

Maybe, you will have to pull the Chuck and see what the taper is. It should come apart just like this video says. Good luck!

@jeremygreer87

4 ай бұрын

@@EpicTim Thanks!

2:31 Looks like you wasted you money as I still see it wobble. I'm guessing it's the quill that has free play. Could be the arbour also. Throwing money at the problem would have been better served in getting a decent drill press to begin with. Like they say, you can't polish a turd

@EpicTim

10 ай бұрын

Hilarious because I'm not trying to be a machinist on here, it performs beyond what I need it to now. Not everyone needs perfection and.0005" tolerance

@ArcanePath360

10 ай бұрын

@@EpicTim On second view it might be the camera wobbling, difficult to tell. Because at 2:43 the bit seems to be good, but the chuck housing has a wobble. I'm guessing it's just the grip around the housing that isn't seated true, which doesn't matter in that case. In any case if it's good enough for you then that's good. Sorry for my choice of wording earlier. In retrospect it was a bit rude, and you do have the keyless chuck upgrade even if the main problem isn't entirely fixed. Also, here's a tip I recently learned to keep the bit more true: rotate it as you tighten the chuck, in case there are burrs or debris on the bit or in the chuck. It will help push it out the way and keep it perfectly centred.

@ZappninLLP

8 ай бұрын

Yup, that was a wobble. Maybe, just maybe he should have cleaned out the spindle before jamming in the new chuck. @@ArcanePath360

@mstables3185

Ай бұрын

You can polish a turd. That is the sole purpose of Eaton and its ilk, we have a government full of them. Unlike intelligent people they think they know everything, it's the confidence of ignorance. Vote for polished turds and get shit government. The evidence is in Westminster.

Another 3 minutes of my life I won't get back...

@EpicTim

6 ай бұрын

You're welcome!!!

Sorry there junk