Bahco ERGO Bit Holder Screwdrivers with quick release bit holder and Interchangeable Blades Set 8 Pcs BE-8574Includes ERGO handle with 1 4" hexagon drive bit holder for blades or bits and interchangeable blades 100 mm blades: 0. 8 x 40, PH1, PH2, PZ2, T20, T25, T30 Lock in type system for easy and safety lock, magnetic, blades stays caught until the release is driven With strong permanent magnet Screwdriver developed according to the scientific ERGO process Three component handle for maximum user comfort, soft material with ridged surface provides superior