[Features]● A bit holder exclusively for "Impactor" bits. ●By using it together with the "Impactor" bit, the life of the bit can be doubled or more. ●Torsion is applied at 3 points, 2 points inside the holder and 1 point on the bit part. ●Push the idling sleeve to turn on the magnetism, and pull it in to turn it off. ● Holds long and heavy screws.