... . eco-friendly 3. size:6*34.2mm 4. DIN JIS knife shaftSpecifications:1) Suitable for various automotive, electronic, telecommunications, mechanical products ... , optical projectors, Mitutoyo fineness instruments for inspection, EDM, high speed CNC machine, Sodick wire EDM, etc. 3)Quality control equipments: roundness meter ... , with an output of over 1 million pieces per month. knife shaft