LugerForum Discussion Forums - View Single Post

Hugh · 01-27-2002, 11:22 PM

What you have to remember is that the Germans were not using "inches", but the metric system. They were also apparently using electric checkering machines; and the checkering on original grips is usually much coarser toward the edges than in the middle of the grip.

When I started "freshening" original grips, I found that the 18 LPI tool would begin to overrun the diamonds after about 3 or 4 lines. When I switched to the 20 LPI tool, I did not have this problem. Occasionally I have run into a pair of 18 LPI grips; these are usually on WWI guns. I have had several people contact me about "counting the lines" and coming up with 16 LPI and other spacing. All I can say is that I have checked a lot of grips with a Brownells "Checkerchex" and the originals come closer to 20 LPI than any of the others, except for the afore mentioned few.

After writing the above; I realized that I had the answer right here in my computer!

I just checked my set of Luger blueprints and found the following: Diamond width: 1.3cm; this is equilavent to 19.23 LPI. Intersecting angle of lines that form the diamond is 38 degrees.

01-27-2002, 11:22 PM	#6
Hugh RIP Join Date: Jun 2002 Location: Southeast Texas Swamp Posts: 2,460 Thanks: 2 Thanked 166 Times in 65 Posts	Grip checkering What you have to remember is that the Germans were not using "inches", but the metric system. They were also apparently using electric checkering machines; and the checkering on original grips is usually much coarser toward the edges than in the middle of the grip. When I started "freshening" original grips, I found that the 18 LPI tool would begin to overrun the diamonds after about 3 or 4 lines. When I switched to the 20 LPI tool, I did not have this problem. Occasionally I have run into a pair of 18 LPI grips; these are usually on WWI guns. I have had several people contact me about "counting the lines" and coming up with 16 LPI and other spacing. All I can say is that I have checked a lot of grips with a Brownells "Checkerchex" and the originals come closer to 20 LPI than any of the others, except for the afore mentioned few. After writing the above; I realized that I had the answer right here in my computer! I just checked my set of Luger blueprints and found the following: Diamond width: 1.3cm; this is equilavent to 19.23 LPI. Intersecting angle of lines that form the diamond is 38 degrees.