5,[Wide Application]----- Thread clamping knob black plastic hand knob star shape knob handle for machine tool. Star Shape Hand Knobs Black Plastic Screw-On Handle Clamping Knob for Mechanical Equipment, Instrument and Apparatus [Durable] This nut knob handle adopts injection molding technology, with smooth surface and strong wear resistance. [Ergonomics principle] The bottom of the handle of this star knob has an arc design, which is convenient to hold, save time and effort, and is easy to operate. Handle Outer Diameter: 50mm / 2in, Quantity: 5pcs, Package List:, 5 x Nuts Knob Grip Machine Tool Handles Belupai 5Pcs Nuts Knob Grip Handles, Star Knob Female Thread Nut M10 M12 Star Nut Knobs Uxcell 2Pcs Star Knobs, M10x80mm Plastic Hex Shaped Clamping Handle... [Brass nut inner core] Knurled thread clamping knob splint threaded brass nut inner core, deep tooth pitch, more firm fixation. 5Pcs M10/M12 Star Knob Clamping Handle Nut Specification: Item Type: Nuts Knob Grip M6 M8 M10 M12 Hand Knob Screw Handle Thread Seven Star Shaped Head Clamping Nuts Knob I.161433513 [M10 M12 thread] We have prepared two different sizes of star knobs for you.