Measuring a I/d

[Brad93]

I feel like im not worthy, my regular for tesa is a dti and precision angle finder just beautiful to use. Make the starret stuff seem gritty in comparison.

My new mitutoyo snap gauges don’t seem to be that smooth but I’ve nothing to compare them too.

 

[Fraserb]

I’m probably the worst offender - I’ve got stuff on the go way older than 3 years

My uncle started fitting a new kitchen just after my aunt and him got married, he got it finished soon after their 30th wedding anniversary.

 

[Hood]

My new mitutoyo snap gauges don’t seem to be that smooth but I’ve nothing to compare them too.

Mine are just ancient Draper ones which I bought when I was about 18, so probably 10 years before you were born They are actually not too bad but telescoping gauges don't really need to be that great anyway as long as you use them correctly.

 

[Hopefuldave]

Go / No-Go plug gauge? What's the tolerance on ID?

Dave H. (the other one)

 

[addjunkie]

Over 50 mil I use a rod mic, or bore mic what ever you want to call it.

 

[northwest]

I use diatest stuff for measuring bores. It is a real pain to set up but once you have you can easily read tenths with it. I would love some Tesa or Mitutoyo bore mic's for the common bore sizes I use but I have never found them for sale in my price bracket yet.

EDIT: I am normally messing around with bores between .177" and .50" so really the Diatest stuff is more useful to me.

 

[Nick67GT]

Update - nothing that big unfortunately.

 

[pressbrake1]

I rely on luck tbh

 

[Brad93]

I rely on luck tbh

Feel is the technical term

 

[Hood]

Feel is the technical term

Or experience

 

[grim_d]

Just in case you don't know, to use a telescopic gauge you tilt it past level, unscrew and let it snap to the angled dia and then tighten and swing it to level and beyond, that will make sure you get a good reading from it. I have seen people just hold them level and unscrew to let it snap to the dia and then tighten. That won't get an accurate measurement of the bore as the tightening will likely pull it in a bit, also you may not have it exactly level in the first instance.

I do, and not long after this very old thread I got a set of mitutoyo snap gauges.

 

[grim_d]

My new mitutoyo snap gauges don’t seem to be that smooth but I’ve nothing to compare them too.

That is strange, mine are buttery

 

[Hood]

I do, and not long after this very old thread I got a set of mitutoyo snap gauges.

My quoted reply is also very old, what beggar trawled this up, get yer pitchforks lads

 

[grim_d]

My quoted reply is also very old, what beggar trawled this up, get yer pitchforks lads

You are correct sir, my mistake.

It was @Brad93 , the rascal.

 

[Brad93]

That is strange, mine are buttery

Maybe they will free up with time. They feel a little rough when squeezing them in. Almost like they’re rubbing a bit inside on an burr.

you compare a new Mitutoyo dial indicator to an old one and the quality has definitely dropped.
Can’t afford Swiss though for what is basically a hobby.

 

[Shox Dr]

Cant remember the who it was on ut, they took a pair of Mitutoyo snap gauges apart, they were shoddily made, nothing had been deburred.

(I bought some dasqua, for 18quid a few weeks ago. everything was clean and deburred. Nice finish over all, especially for 18quid)

 

[grim_d]

Maybe they will free up with time. They feel a little rough when squeezing them in. Almost like they’re rubbing a bit inside on an burr.

It's not impossible, there's a recent TOT video where he had to deburr a set of brown and sharp snap guages.

 

[Brad93]

Cant remember the who it was on ut, they took a pair of Mitutoyo snap gauges apart, they were shoddily made, nothing had been deburred.

(I bought some dasqua, for 18quid a few weeks ago. everything was clean and deburred. Nice finish over all, especially for 18quid)

How do you take them apart? If they’re shoddy inside I’ll send them back and get starretts. Not sure if they still are but I think starrett used to make a lot of stuff in Scotland.

 

[Brad93]

It's not impossible, there's a recent TOT video where he had to deburr a set of brown and sharp snap guages.

TOT?

 

[grim_d]

This old tony