12-30-2012, 10:44 AM
Here's my latest attempt at a shop made reamer. After several (meaning 'many') semi-failed attempts with less than satisfactory results, I think I finally hit on the right procedure. My first attempts involved using "mystery metal" of questionable origin. I finally broke down ("broke" being the operative word here) and ordered some O1 tool steel from Speedy Metals.
Here's a pictorial of the process.
I got my drawings, like a good boy and promptly began changing them I think that's SOP for making precision tooling. Here's the stock and drawing.
Next I drilled centers and cut the square drive head. I used an el-cheapo 5C holder for this.
Now comes the fun part.. Since I didn't have a 5/8 collet to match the O1, I had to turn it down to 9/16.
Here's a pictorial of the process.
I got my drawings, like a good boy and promptly began changing them I think that's SOP for making precision tooling. Here's the stock and drawing.
Next I drilled centers and cut the square drive head. I used an el-cheapo 5C holder for this.
Now comes the fun part.. Since I didn't have a 5/8 collet to match the O1, I had to turn it down to 9/16.
pamrick, proud to be a member of MetalworkingFun since Jul 2012.