Reamer size?

[jbblount]

Is .124" size reamer small enough for a press fit with .125" stop pin? Hope asked that right.

 

[Nathan the Machinist]

Yes it is. .1240 reamer for a .1250 pin will work well in most applications. Have you measured your pin accurately?

 

[jbblount]

Yes it is. .1240 reamer for a .1250 pin will work well in most applications. Have you measured your pin accurately?

Well what I thought was .125 turned about to be closer to .124. I'm trying to figure out a stop pin for a frame lock. Not real excited about press fitting it. Maybe use a pivot like a sex bolt. You have any suggestions? Thanks for your response.

 

[12345678910]

You can get reamers in tiny tiny increments, to press fit your pin, whatever the pin size.


.1230 is common as a "dowel pin reamer" size
http://www.kbctools.com/Can/PDF/c0078.pdf



For example lots of sizes
.1225
http://www.kbctools.com/Can/PDF/c0079.pdf

If you have a bench vise, you can use that to press it in.
There will be nothing as close fitting, durable, or as small as a simple straight pin.

I would use a bit of red loctite when you put it in - it will act as a bit of a lube on the way in, and help to hold it for the duration.

 

[12345678910]

double

 

[jbblount]

thank you very much!

 

[Fellhoelter]

Personally, I don't do a press fit.

In my shop, knives go together, and come apart a few times before they are done, and it's important that I am able to do that.

Press fitting will booger things up.

I like a nice, snug, push fit.