Description of MAGBIT 911 0916 MAG911 16 Inch 12 Inch
High speed steel. 118 degree split point. 1/2-Inch shank with 3 flats. Specially designed flutes for better chip ejection. Designed to give the roofing and framing contractor more holes per bit.
After TRYING this product, i cannot recommend it to anyone in the industrial and scientific industry. The drill bits lack durability and break too easily, making them a waste of money... The only positive aspect is that they are a decent size range. However this does not outweigh the many cons. Stick to another brand for your cutting tool needs..
Pros
Long length allows for drilling through thick materials
Cons
May require a larger drill or drill press to handle the size and weight
Really disappointed with the overall performance of the bit. When drilling three holes in mild steel, the cutting edge of both chip flutes (correct term?) broke off. I stopped using this one and tried another bit. made it through 27 holes with very little wear. I used this bit again to drill through the aforementioned original steel and wood shaft for the custom crossbar, and this time half the edge of a flute broke off. I will seek a return.