PKD70B1/4 is a molded phenolic control knob featuring a straight knurl surface with a spun aluminum inlay and black arrow indicator. This knob is designed for 1/4-inch shaft applications and includes a No. 6-32 set screw for secure mounting. The dimensional specifications include an overall diameter (A) of 1.02 inches (25.9 mm), a body diameter (B) of 0.750 inches (19.1 mm), and a skirt diameter (C) of 0.700 inches (17.8 mm), with a shaft depth (D) of 0.080 inches (2.0 mm). The knob features a spun aluminum inlay for enhanced durability and a black arrow indicator for precise position marking. This knob is commonly used in industrial control panels, test equipment, and consumer electronics where reliable shaft control and clear position indication are required.