6mm Ball End Hex Key T-Handle Wrench Spanner, Metric S2 Steel 4 Pcs BNC Adapters the tooth surface is treated

the tooth surface is treated by high frequency quenching

Fitment: for Audi S4 2011-2016

Double sewing provides more durability

we strongly recommend testing the door lock key and door lock motor to work properly and then closing the installation window

for BMW 550i 2006-2010

6mm Ball End Hex Key T-Handle Wrench Spanner, Metric S2 Steel 4 Pcs BNC Adapters the tooth surface is treated1. Quenched and heat treated S2 alloy steel bits, hardness arrived at 58 60 HRC, reducing wear outs. 2. Ball profile design, you can easily tighten and loosen the socket cap screws at a 25 degree entry angle, which helps to get into hard to touch places. 3. T handle design provides a firm grip and achieves large torque. 4. The hex end is chamfered to slide easily into the fastener, reducing wear on the wrench and fastener head. 5. Applied in DIY hand