1 Level
809 Review
51 Karma
Review on π Superior Performance Fractional Self Starting Step Drill 10235: Achieve High-Speed Efficiency by Shawn Parker
Poor design for large hole sizes.
Failed. I had a 7/8" hole that I was trying to enlarge to 1" in 1/8" mild steel. Rotation. There is a lot of friction with this attachment as there is only one cut relief. When trying to make a hole When trying to drill there was so much friction that the drill stopped turning I do not recommend this bit if you are using it for larger holes.
Pros
- Made of strong high-speed steel
Cons
- old
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