Square broach 4sale but I don't understand.

[woodchucker]

https://www.ebay.com/itm/Hassay-Sav...ll-/253406040885?_trksid=p2141725.m3641.l6368
The broach has a 1" square, but the pilot is 1 -3/32.
How can the pilot be bigger than the square?????
Am I missing something. Not buying , but I was really confused. If you look at one of the pics you can see that's what it says.

 

[Bill Gruby]

The pilot is always bigger on a square broach. You are only cutting the square corners, not the whole square. You would break the broach otherwise.

"Billy D"

 

[Wreck™Wreck]

If an actual square multiply the side length by the square root of 2, this gives the distance across the "sharp corners", you are using a cutting tool so there are no sharp corners.

 

[woodchucker]

Thanks, from the looks of it, the pilot looked smaller than the square. Looks can be deceiving.

 

[dennys502]

http://dumont.com/our-broaches/square-broaches/