Hu-Friedy - Scaler #204SD hdl #2 Sicklerequire less force scaling is easier and more comfortable provide an easy, comfortable grasp light weight reduces hand fatigue The dental instruments you use are a critical extension of your skill, so they need to perform consistently with every patient, every day. With Hu Friedy, every instrument, from its proprietary metal to the uniquely and textured handle design, is created with one purpose??? to help you perform at your best.