Screwdriver bit
1. For head: we have flat head ,cross head,star head.torx head.....uesd in various screws,for example:
cross head: PH0:the head diam of screwdriver bit is about 3.0mm,used for M1.6-M2 screws
PH1:the head diam of screwdriver bit is about 5.0mm,used for M2-M3 screws
Ph2:the head diam of screwdriver bit is about 6.5mm ,used for M3.5-M5 screws
Ph3:the head diam of screwdriver bit is about 8mm,used for extra large cross screws
Note :M2 screw means the outside diameter of screw is 2mm
2. For the Materail: 45C,GCr15 and S2
GCr15 is better than 45C
Domestic S2 is better than GCr15
Taiwan S2 is better than domestic S2
3. For Length: we have 50mm,65mm,100mm,125mm,150mm,200mm,250mm,300mm
4.For surface: sandblast,black,gilt,nickel plating,brown,primitive colours
5.For Packing:skin card,single blister card and plastic box
Generally,we put 10 pcs in a skin card or single blister card,and then put into a white inner paper box,then out into the carton
6.For the brand on the screwdriver bit,if your quantity is more than 10000pcs,then we can engrave your logo on the products