The wera tool check plus set is a compact portable hard case featuring a huge selection of 25mm bits zyklop sockets adaptors and handles that are ideal for a multitude of applications the 813 bit holding screwdriver handle is suitable for the attachment of bits with 14in hexagon drive as per din 3126 c 63 iso 1173 and wera connection series 1 the 8001 a bit ratchet has a drop forged full steel design suitable for the attachment of bits with a 14in hexagon drive as per din 3126 c 63 and e 63 iso