The BBB torque wrench comes in a practical box with a hexagon-bit set, which appears high quality. There is a locking mechanism, ie the bits do not slip off the tool when it is withdrawn from the screw. The tool comes with a test certificate for the set torque values. The max. Deviation is in the range of a few%, so it should be ok for purists. The scale starts the way, already at 2 Nm (not 4 as specified in the product description). So far, the key has does its job without any problems. For this price it is not worth untwist threads, or damaging parts (have already done a stem so destroyed).