Neiko 10193A Titanium Step Bits, Unibit Set, 28 Sizes, High Speed Steel, Standard (SAE) Step Drill Bit Set, Step Bits for Metal. Unibit Step Drill Bits, Industrial Unibit

Works well. hope it lasts long.

İşimi gördü

We were working on a craft project that required holes through small sheet metal covers to mount solar lights. The holes were 11/16 inch diameter and these step bits cut a nice, clean round hole in the metal. The bits have angled shafts to prevent rotation in the drill chuck, and seem sturdy and sharp. For cutting something thicker, like wood, I think it would work easier to see clearly when the various step levels occur, because you have more resistance. But overall these worked great for our project, and a new addition to the variety of drill bits we need and use around our DIY projects.

Me parece ser muito bom,mas só com o uso poderei fazer uma avaliação exata do produto.

Step drill bits