The product in display Adapter Handheld Pin Vise Chuck Set for use with miniature drills. Lock this adapter in chuck to convert it for precise drilling with small size drill bits. Also adapts 3/32 inch (2.40 mm) collets on rotary tools and flexible shafts to a more useful 0 to 3/32 inch (0 to 2.40MM). Comes with two sets of jaws (capacity 0 to 1/16 inch (0 to 1.60MM) and 1/16 inch to 3/32 inch (1.60 mm to 2.40 mm). Shank diameter 3/32” (2.40 mm), shank length 1-3/8 inch (34.90 mm). Overall length 2-5/8 inch (66.50 mm) NOTE: Remember to wear eye protection. NOTE: Photographs are for illustration purpose only. Actual item may slightly differ from the pictures shown.