Wera 61 piece bit safe bitorsion bit holder and bits wera 05057441001 this 61 piece set from wera includes a range of bitorsion bits and 1 rapidaptor universal bit holder ideal for use when screwing into metal bitorsion prevents premature fracture and extends service lives of both bits and holder wera 05057441001 bit safe 61pc bitorsion 1 torsion bit holder ph px tx hex