


In stock and ready to ship
Delivery estimate: 1–17 business days (orders process in 0–10 business days, then 1–7 business days in transit). Exact shipping options and rates are shown at checkout. Shipping policy
Returns: 30-day returns on eligible items — unused, uninstalled, in original packaging. Returns policy
Ensure optimal performance of your high-speed Ratchet Knob™ with our O-ring Service Kit! Our high speed model is designed with O-rings. Over time the O-rings may break or you may experience an increase in oscillation. When that happens, it’s time to replace the O-rings. The service kit includes a silicone-based grease/oil and 10 O-rings which will allow you to service your high speed Ratchet Knob™ up to 5 times. To change O-rings: Use a pick to remove old o-rings. Pre-lubricate new o-rings with provided silicone grease prior to installation. Starting at the corner, hold the o-ring in the groove and slide over the face of the lug until it fully seats into position. Repeat for the second side. If you feel it necessary at this stage, another application of grease to the outside of the o-ring is acceptable. Done! Continue to enjoy the use of your high-speed Knob. Get your kit today!