Works exactly like my cordless drill. Reversible, variable speed with clutch. The great thing about cordless drills is the clutch so I can control the maximum torque applied to the set screws without breaking them. However, batteries always run out. So when I have to work, I have to wait for the batteries to charge or find that they no longer hold a charge. Now I don't have to wait anymore. I think this exercise is great. I just want the lining to be 1/2 inch. The drill is also chunkier than the cordless drills I've had. But it's a great replacement as I refuse to buy expensive batteries. For the price, I highly recommend this product.