Dial test indicator question

[turner421]

I am looking to buy a dial test indicator with like a 2” tip. I was looking at interapid, but got to thinking. Could I just buy a 2” tip for the shars indicator I already have? Or could changing the tip mess it up?

 

[RJSakowski]

Changing the tip will change the sensitivity of th indicator. Test indicator actually measure an arc. Increasing the tip length will decrease the senitivity proportionlly. Foer example, changing from a 1" tip to a 2" tip on a .0005"/div. test indicator will change the reading to .001"/div. Aside from that, no issues with changing the tip length.

 

[Bob Korves]

Do a search for a Brown & Sharpe Bestest 7035-5 test indicator. It is .0005" per division, has a 1.5" long tip, 1.5" black face dial, and are out there at good pricing. Very high quality, made in Switzerland. I have one, not for sale! 2" tip is getting pretty long, no help for you at that length...

 

[P. Waller]

Do you use a lever indicator for measuring linear distance or comparative measurements?

 

[astjp2]

Both, depending on what you are measuring. I use one on a height gauge to measure comparative across a surface, I use the same indicator when measuring lathe way wear with my home made king way alignment tool