If you have a job to do on your bike, make sure you do it in style. This premium quality bike tool comes with all the tools needed to fix your bike in no time. The luxury aluminum body is matched with premium grade 420 stainless steel tools all in solid black. The durable tools are made to last a long time. The 16 functions include: Bit handle, integrated bit holder ( S2.5, S2 5mm, S2 4mm, S3 3mm, S2 6mm, S2 PH2) , spoke 3.4/3.3, box cutter, adaptor, multi function 18mm wrench with lock, second multifunction wrench 15/10/8 mm with lock, file. Packed in luxury gift box.Hardness level of bit 60-62 HRC. Hardness level of tools 40-45 HRC