Emtek Ace Knurled Knob Set with Quincy RosetteAbout the Emtek Ace Knurled Knob Set with Quincy Rosette The new Studio Brass product category introduces boutique designs, inspired by the world beyond door hardware. Every detail is explored and crafted with the application of industrial design through traditional and experimental methods. The newest addition to the Emtek Studio Brass Collection is the Ace Door Knob. Visually impactful but accessible, The Ace Knob mimics the profile of a T cabinet