The slow-speed handpiece dental drill turns much slower rpm’s than the high speed. It is used primarily for removal of decay and polishing of teeth or fillings. It is also used, out-of-the-mouth, for adjusting acrylic appliances. The slow speed handpiece turns at about 600 to over 200,000 rpm’s but is usually used at the lower levels. It has much more torque than the high speed handpiece.
