The Bosch Custom Case System is compatible with Impact Tough™ Bits, delivering the best case for the best bits. With the Xtended Torsion Zone, Bosch Impact Tough™ screwdriver bits have been upgraded to deliver 10X life over standard impact bits. The Xtended Torsion Zone absorbs torque peaks to reduce stress at the bit tips.
![SDMS48 48 pc. Impact Tough™ Screwdriving Custom Case System Set](https://www.boschtools.com/us/en/ocsmedia/optimized/full/SDMS48_500x700.png)