TEIN Part# SST01-K0335-B
(1) High rigidity is realized by using Chrome Vanadium Steel,
(2) Beautiful appearance by buff finish (Specular finish),
(3) Round shape to fit your hands,
(4) Improves efficiency of work due to increased lapping area,
(5) A hole with I.D 12.7mm (1/2 inch) that matches spinner handle or the like,
(6) Hexagonal hole (I.D 17mm) can be used to lightly tighten the top nut,
(* top nut needs to be tightened at the torque suggested by TEIN.)
(7) Designed to fit the bracket for full-length adjustable type for firm grip.