Set includes: MaxxTor Impact Bits Hex In: 1/8, 9/64, 5/32, 3/16, 7/32, 1/4” | Hex Metric: 3.0, 4.0, 5.0, 6.0mm MaxxTor Impact Bits have energy absorbing torsion zone for 120 times performance over standard bits Exact fit precision machined tip for reduced cam-out Standard 1/4" hex drive for universal application Available in 1" and 2" lengths for versatile utility