How to Accuratly Measure Between Two Holes
Intro: How to Accuratly Measure Between Two Holes
So you have two holes and you need to transfer the dimensions to another workpiece. This comes in handy when transfer punches are not able to be used.
STEP 1: Measure Hole Sizes.
Now take your vernier calipers and measure both hole sizes. Even if hole was drilled with a certian size bit chances are it is oversized. These holes were drilled with a 3/8" bit. The holes are .378" each....
STEP 2: Measure Inside Dimension
So mease the shorest distance between the holes. Mine measures 2.622". Now take one hole measurement and add to distance measurement. Mine will look as such2.622 + .378 = 3My first measurment equals 3" holes center distance.
STEP 3: Double Check!!
So if you would like to make double sure.....measure the outside distance between your two holes. Mine is 3.378" . Now take one hole measurement and subtract from total distance. Should look as such3.378 - .378 = 3Again I got a distance of 3"
STEP 4: Conclusion
Now you know the handy fast way of measuring between two holes. Hope this helps with future metalworking projects. Enjoy and be safe in your shop!!!
12 Comments
sandxox 1 year ago
Nano KiloR 5 years ago
Nice article, but when you measuring something, you must get exactly final dimension with one measuring activity. For hole to hole distance you can measure from edge to edge, its give you same result when measuring from center to center.
cutprogram1 5 years ago
Caspar 6 years ago
If holes are the same size, measure one of them and re-zero the vernier (it must be the digital type). Note that the zero now showing is the distance between 2 fictitious holes, one directly over the other. (Duh!) So now measure the distance from the outer edge of one hole to the outer edge of the second. Voila !
Pointy 10 years ago
Given that the holes are the same size I always measure from the distance from one whole hole to the start of the other (red). Measure on the inside of the hole. See picture. That way you get a center reading, without the added calculus (black).
rimar2000 10 years ago
Me too, but Carl Blum has a clever method where the holes size does not matter.
Tex Arcana 10 years ago
Pointy 10 years ago
Oh, and if a center punch cannot be used: Spin a same size drill as the original hole a couple of turns with the
original piece up top. That way you get a small indent that you can use
as a center for your smaller drills. That way you won't even need to measure.
cutprogram1 10 years ago
rimar2000 10 years ago
Useful tip.
Carl Blum 10 years ago
rimar2000 10 years ago
Yes, your method is better. Thanks for sharing.