BTB Blade Depth Controller Arm for Z Blades (Thin Wheel)
For Blades: WK4Z, WK4Z-S, WK5Z-S, WK5ZR-S, WK18Z, WK18Z-S, WK19Z-S, WK24Z, WK24Z-S, WK24ZV, WK24ZV-S.
CONTROLLER ARM WHEELS
Controller Arms with the THIN 1mm wheel are designed to roll smoothly along uneven (in and out) urethane surfaces.
Controller Arms with the THICK nylon wheel are designed to roll along A-pillar trim, soft headliner or vehicle body panel.