Wera bit check 10 pz bitorsion 2 with bitorsion rapidaptor is designed for compact and organized tool storage utilising a unique combination of special material hardening and precision manufacture bi torsion bits are designed to prevent premature wear and dramatically extend service lifethe patented torsion zone combines with that of the rapidaptor holder to absorb peak stress loads that normally destroy bits bth extra hard bits are suited to general wood applicationsthe holder with quick