Long nosed punches

[packratt]

Anyone have any ideas where I can find some 3/8", 7/16", and 1/2" Pin punches with a tip length of at least 3in?

I've got a pivot pin rusted into the eye of a hydraulic cylinder I need to pull for repair. Location is not conducive to heating or cutting with a torch and there isn't enough clearance for a seawall or anglehead to cut pin.

As built it is a blind pin but I've drilled a hole through the tube frame to reach the fund to drive it out. The only long enough hardened bolt I could get my hands on today was 3/8 and it was bending while I was hammering on it.

 

[Badshot308]

Anyone have any ideas where I can find some 3/8", 7/16", and 1/2" Pin punches with a tip length of at least 3in?

I've got a pivot pin rusted into the eye of a hydraulic cylinder I need to pull for repair. Location is not conducive to heating or cutting with a torch and there isn't enough clearance for a seawall or anglehead to cut pin.

As built it is a blind pin but I've drilled a hole through the tube frame to reach the fund to drive it out. The only long enough hardened bolt I could get my hands on today was 3/8 and it was bending while I was hammering on it.

Try McMaster-Carr

 

[packratt]

That was the second place I checked. I can find the 3/8 at McMaster, Grainger, and msc. I'm striking out on 7/16 and 1/2 with a long nose

 

[Cowpokey]

Do you have an old shock absorber laying around? Could take the rod out of that, cut the ends off and use it as a punch. They are pretty hard.

 

[Badshot308]

That was the second place I checked. I can find the 3/8 at McMaster, Grainger, and msc. I'm striking out on 7/16 and 1/2 with a long nose

See if this style of punch would work: https://www.mcmaster.com/punches/pin-removal-punches-for-hollow-and-spring-pins/

 

[Alan Warner]

Starrett

 

[gray1974]

The 3/8 Starrett is extremely tough. I have never bent one but I haven't used more than a 4lb hammer with them either.

 

[whatsupdoc]

If possible weld a long bar to the pin and try to rotate it, may have a step worn into the pin.

 

[n2ishun]

Go get a cheapo harbor freight air chisel.
They'll have a selection of bits on the wall next to it.
Buy the one closest to what you need and grind to correct size.
You'll blow me off for now.....but you'll end up doing it anyway

 

[Hobo Hilton]

Save your knuckles:

Air Impact Hammer Kit

Amazing deals on this Air Impact Hammer at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

7 in. Long Air Chisel Set, 3 Piece

Amazing deals on this 3Pc 7In Long Air Chisel at Harbor Freight. Quality tools & low prices.

www.harborfreight.com

 

[AMGtuned]

Dasco. The blue ones with white writing on them.

 

[S197]

Your local Mac tool truck

Punches and Chisels

www.mactools.com

 

[Sean the Nailer]

I'm going to assume that you can't weld on a nut, and just screw-on the end of a slide-hammer to PULL the pin out? That's what I/we did in the sawmill, on the old-style tapered keys and such.

Quite surprising what you can do with a slide hammer.

 

[Mooseknuckles]

Mayhew. Price is very good. They make a lot of punches and chisels for Matco, Mac and snap on.

 

[packratt]

I'm going to assume that you can't weld on a nut, and just screw-on the end of a slide-hammer to PULL the pin out? That's what I/we did in the sawmill, on the old-style tapered keys and such.

Quite surprising what you can do with a slide hammer.

On the other side I was able to use of the hooks on my 5lb slide hammer, hooking the anchor tab. On this side the tab is almost broken off and there is too much flammable stuff and a spaghetti of hydraulic lines to strike an arc.

I've drilled a hole and can get a punch to the end of the pin if I have a long enough punch.

McMaster had a 1/2 that was shorter than I wanted but long enough to get the pin to move about 1/2". Then I got one of the starret 3/8 to get it most of the way.

 

[Average guy]

Long ass air chisel punches have saved my ass a time or two

 

[Jgunner]

Many times i just buy a long grade 8 bolt for use as a punch. Grind the end down to whatever shape you think is best and get to pounding. Ive bent 1, but you gotta try and fuck it up.