DRO-2Axis Digital Readout DRO Digital Display for Milling Grinding WEDM Lathe EDM Processing Machine Description: DRO-2Axis digital readout fits linear scales. It is widely used in milling machines, grinding machines, WEDM, lathes, EDM and other processing equipment. Package Included: – 1 x Digital Readout. DRO-3Axis Digital Readout DRO Digital Display for Milling Grinding WEDM Lathe EDM Processing Machine Description: DRO-3Axis digital readout DRO fits linear scales. 5U Linear Scale Grating Ruler Perfect for Digital Readout Grinding Milling EDM Machines. Advantages: – Quality linear scale – Fine workmanship and premium quality – Can be used with digital readout – Widely used: suitable for milling, grinding and EDM machines. Specifications: – Measuring range: 50mm/2″ – Mounting length: 140mm/5.5″ – Total length: 190mm/7.5. Specifications: – Measuring range: 100mm/3.9″ – Mounting length: 140mm/5.5″ – Total length: 240mm/9.4. Specifications: – Measuring range: 150mm/5.9″ – Mounting length: 140mm/5.5″ – Total length: 290mm/11.4. Measuring range: 200mm/7.9″ – Mounting length: 140mm/5.5″ – Total length: 340mm/13.4. Specifications: – Measuring range: 250mm/9.8″ – Mounting length: 140mm/5.5″ – Total length: 390mm/15.4. Specifications: – Measuring range: 300mm/11.8″ – Mounting length: 140mm/5.5″ – Total length: 440mm/17.3. Specifications: – Measuring range: 350mm/13.8″ – Mounting length: 140mm/5.5″ – Total length: 490mm/19.3. Specifications: – Measuring range: 400mm/15.7″ – Mounting length: 140mm/5.5″ – Total length: 540mm/21.3. Specifications: – Measuring range: 450mm/17.7″ – Mounting length: 140mm/5.5″ – Total length: 590mm/23.2. Specifications: – Measuring range: 500mm/19.7″ – Mounting length: 140mm/5.5″ – Total length: 640mm/25.2. Specifications: – Measuring range: 550mm/21.7″ – Mounting length: 140mm/5.5″ – Total length: 690mm/27.2. Specifications: – Measuring range: 600mm/23.6″ – Mounting length: 140mm/5.5″ – Total length: 740mm/29.1. Specifications: – Measuring range: 650mm/25.6″ – Mounting length: 140mm/5.5″ – Total length: 790mm/31.1. Specifications: – Measuring range: 700mm/27.6″ – Mounting length: 140mm/5.5″ – Total length: 840mm/33.1. Specifications: – Measuring range: 750mm/29.5″ – Mounting length: 140mm/5.5″ – Total length: 890mm/35. Specifications: – Measuring range: 800mm/31.5″ – Mounting length: 140mm/5.5″ – Total length: 940mm/37. Specifications: – Measuring range: 850mm/33.5″ – Mounting length: 140mm/5.5″ – Total length: 990mm/39. Specifications: – Measuring range: 900mm/35.4″ – Mounting length: 140mm/5.5″ – Total length: 1040mm/40.9. Specifications: – Measuring range: 950mm/37.4″ – Mounting length: 140mm/5.5″ – Total length: 1090mm/42.9. Specifications: – Measuring range: 1000mm/39.4″ – Mounting length: 140mm/5.5″ – Total length: 1140mm/44.9. Thus, please contact customer service to confirm the length of the package before purchasing. Package Included: – 1 x Linear Scale. Usually it costs about 30USD-50USD. Thanks for your understanding. If you receive the item that not satisfied or defective, please do not open case and kindly notify us within 30 days.