Double Ended Pin Vise - 0.5 to 3mm Range : ( Pack of 2 Pcs ) Double ended pin vise - 2 chucks - holds sizes 0.5 mm to 3 mm Stainless steel construction - durable - years of dependable use 3.5 inches long - silvertone color - straight line texture grip to prevent slippage Vise to hold small drill bits - for drilling insertion hole - jewelry work - very diverse tool A very high quality piece of equipment that is necessary for many tasks