Wera Bit-Check 12 Wood 1, with Ring Magnet Rapidaptor long life bit set is designed for compact & organized tool storage. Utilising a unique combination of special material, hardening & precision manufacture, TORSION bits are designed to prevent premature wear for enhanced service life. The bits are designed for driving screws into normal Construction Timbers & materials. Through-hardening creates a much harder wearing bit. The clever RINGMAGNET RAPIDAPTOR bit holder holds up to 8" (200mm) screws securely in place & acts like a third h&. Great for overhead & repetitive screwdriving or driving screws into recessed areas. Ideal for dry lining fixings. Handy press-in auto-lock & rapid one-handed bit changes for insert & power bits. The holder spin sleeve allows the steadying of the screwdriving. Wera Bit-Checks feature a compact design to safely store bits & bit holders in a case that provides fast & easy tool selection. So slim it can fit into your pocket. Sorted by drive & size, tools are easy to locate & return to proper position, making missing products easy to identify.