Vary the speed of your carver hands-free! This variable speed foot control pedal is a must have! It allows you to change the speed seamlessly with an easy to press foot pedal, leaving your hands free to hold the tool and your work simultaneously without interruptions from fumbling with hand controls. From off to full speed and everything in between, you'll be amazed how often you change your carving speed from moment to moment. With just a little change in foot pressure, you can change the speed to carve critically fine details or press down for fast carving. This foot pedal connects into your air hose to control the speed of your carver and comes with two brass hose barbs for easy hook-up. Just push your air hose onto the barbs and you have instant speed control. Your carving tool is off until you apply foot pressure to the pedal. The more you push the pedal, the faster your carver turns. The foot pedal uses an actual control valve connected to a long throw pedal to vary the air flow, unlike other foot pedals that pinch the air hose and can cause leaks and foot fatigue. Once you use a foot pedal like this, you'll wonder how you ever carved without it. This foot pedal is industrial grade and will last a lifetime.