Interchangeable screwdriver, ratchet, socket and bit set providing an incredible 162 tool combinations. Tool-Check Plus features the ultra-strong Zyklop Mini 1 bit ratchet with a fine 60-tooth reversible mechanism that provides a small return angle of only 6°. Capable of withstanding up to 100Nm of torque. Perfect for confined spaces, requiring only 25mm clearance when using 25mm screwdriver bits. Grooved thumbwheel allows for rapid screwdriving, even in the most of compact spaces. Sockets can be attached onto the ratchet via a ¼" adaptor, with a ball bearing for a secure fit of sockets onto the ratchet. The set also includes a Kraftform stubby screwdriver with a strong magnet for a secure fit of bits. Ideal for auto, maintenance, plumbing, air-conditioning, machine servicing, electronic and aerospace industries. Supplied in a compact storage case.