9/64" A simple add on tool for your order to help install the BTSV3 stabilizer for the B50, B500 and B700.
or
5/64" A simple add on tool for your order to help install the BTS5712 stabilizer for the B5, B7 and B12.
You can leave a note when ordering, but we will know which one to send depending on which stabilizer you order.