This compact 38 piece screwdriver bit set contains a deceptively strong Zyklop Mini Bit Ratchet with a fine tooth and reversible ratchet mechanism. Capable of taking 100Nm of torque this really could be the strongest mini bit ratchet on the market. Ideal for access in tight spaces needing only 27mm clearance when using a 25mm screwdriver bit. A grooved thumbwheel allows even greater versatility if there is no space to ratchet. Also included is a huge range of high quality screwdriver bits in Hex, Torx, Torx Security, Slotted, Phillips and Pozidriv profiles. The 1/4" adaptor and range of 1/4" sockets give the set addition applications. The bit holder means that all the bits and sockets can be used in a powertool (non-impact). Ideal for auto maintenance, plumbing, air-conditioning & machine servicing, electronic & aerospace industries as well as many more. Contents Includes: 1x 1/4" Rapidaptor Bit Holder x 50mm 1x 1/4" Mini Bit Ratchet x 87mm 1x 1/4" Hex to 1/4" Square Drive Adaptor 1x Slotted: 5.5mm 6x Phillips: 2x PH1, 3x PH2, 1x PH3 5x Pozidriv: 1x PZ1, 3x PZ2, 1x PZ3 5x Hex-Plus®: 3, 4, 5, 6, 8mm 6x TORX: TX10, 15, 20, 25, 30, 40 5x TORX Security (BO): TX10, 15, 20, 25, 30 7x 1/4" Sockets: 5.5, 6, 7, 8, 10, 12, 13mm