The Firing Line Forums - View Single Post - Proper tool to measure 90 degrees for pins

G. Freeman · September 13, 2012, 02:06 PM

Hi Guys,
Is there a good tool that I can measure or make sure that a pin is 90 degrees in relation to the rest of the part as in a 1911 thumb safety or slide stop?

I've tried using a straight edge or triangle but the area that joins the pin to the part is beveled & I coudn't get an accurate measure. Most of these rulers have a very sharp edge.

I know that I can just place the part into the gun, but sometimes I'm lazy in having to disassemble a gun to test fit a part. There are times I just like to keep some parts as spares without pulling apart my gun.

Thanks in advance!

September 13, 2012, 02:06 PM	#1
G. Freeman Senior Member Join Date: September 1, 2001 Location: Walnut, California Posts: 155	Proper tool to measure 90 degrees for pins Hi Guys, Is there a good tool that I can measure or make sure that a pin is 90 degrees in relation to the rest of the part as in a 1911 thumb safety or slide stop? I've tried using a straight edge or triangle but the area that joins the pin to the part is beveled & I coudn't get an accurate measure. Most of these rulers have a very sharp edge. I know that I can just place the part into the gun, but sometimes I'm lazy in having to disassemble a gun to test fit a part. There are times I just like to keep some parts as spares without pulling apart my gun. Thanks in advance!