General description These 12 pieces of M6 and M8 male thread clamping handle grips are designed for easy replacement of damaged knobs. They are widely used in various applications including lathes, mechanical equipment, instruments, meters, and industrial equipment. Technical specifications Thread Size: M6 x 40mm (D*L), Head Diameter: 32mm/1.26" Thread Size: M8 x 40mm (D*L), Head Diameter: 38mm/1.50" Main Materials: Plastic, Metal Main Color: Black Package Includes 6 x M6 Star Knobs 6 x M8 Star Knobs Other information The data are all manually measured, please allow 1-3cm error. Due to the difference in light and display, there may be a certain color difference; please refer to the actual item received.