- Oct 31, 2015
I could use some advice on making this part. I'm restoring a Marvel #2 power hacksaw (restoration thread here if you're interested). I need to make a bronze bushing with a 1.125" OD, 1.000" ID, and 7.5" long. The length and wall thickness (1/16") have me worried. I don't know if I can bore that length accurately from one end. If I have to bore it from both ends, then I'll have to worry about crushing the thin walled part in the chuck when I swap ends. I also have a question about materials. McMaster-Carr has 932 bearing bronze and "easier to machine" 936 bearing bronze. Is the 936 enough better to justify the additional cost? Any pointers would be appreciated!