10/12/2023 0 Comments Diablo steel demon 7 1/4 rpm![]() 009-E run-out so guess where I'm going to buy my grinding disks.Steel Demon saw blades are specially designed for the extreme demands of ferrous metal cutting thereby enabling precise cuts without sparks, heat or burred edges that result from using abrasive blades. Incidentally, a disk from HF only showed. The OD of the disk is 4.531 so I had ground off very little from the edge, and all measurements were to the flat face, not the worn bevel. 056", this indicates to me that the disks are mounted off center and tilted to a degree that I won't buy these any more. The pictures I've loaded show that the face run-out on the last disk is. I checked, and the bearing on this grinder (about 1 year old) was shot. After a short while it got as bad as before. The vibration was still there but not quite as much as the original disk. Moving that disk over to one of my HF grinders didn't change the vibration much, but these 73 year old hands couldn't handle it for long, so I put a new disk on and started using it. ![]() Close inspection told me that the bearing was shot, but since it was over 4 years old, I figured that it was just the tool. ![]() My primary grinder (Ryobi) finally reached the point that I couldn't hold it more than a few seconds. These last 2 were both causing major vibration issues. I've bought these in the past and didn't have any problems.
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