Standard way to measure shaft/tip size using caliper

cluelesscuer

New member
At what point do you measure?

1. At the intersection of the wood and ferrule at the bottom of the ferrule?
2. At the top of the ferrule?
3. In the middle of the ferrule?
4. At the tip?
 
So far,all of the above. It really just depends on how accurate you want to be.

You can get and stay within .001 once you get consistent with your measuring pressure.

It also helps to rotate the shaft 90 degrees,and measure again. This can help expose an out-of-round piece.

A vernier or digital micrometer is much more accurate,but you don't have to split hairs here,UNLESS you are trying to fix a shaft that is jacked up from improper care such as excessive sanding,or someone else's bad repair job. Tommy D.
 
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I measure the middle of the ferrule. If the remainder of the ferrule or the wood just below the ferrule measures more than +-.05mm or so different, it should be noted.
 
l have heard knowledgeable guys say the right way to measure is to slip the caliper down vertically over the tip *and* ferrule and take the measurement longways. This makes no sense to me because you will be including a possible mushroomed tip into the measurement.

I simply measure across the ferrule just below the tip.

best,
brian kc
 
I measure mine both at the top under the tip and in the middle. Just to see the difference if any.

Tommy has a good point. Have to have a light touch with the calipers. Push too hard and it can make a huge difference in the reading.
 
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