You did the hard work All I did was turn it!! Here's a funny story. I ordered some kits from Signature Pen Supply. First one i turned I went to assemble and it was really undersized! I thought I used the wrong between center bushings. After investigating I realized I ordered Sierra Vista kits . So I was pissed and thought i couldn't turn anymore pens. But after I went inside it dawned on me i have calipers, and the tube fits in my sierra bushings. So I made about 10 more pens