Cheap And Discounts D19xL25 Aluminium Flexible Jaw Shaft Coupling 5 8 6.35mm 7mm 8mm 10mm CNC Stepper Motor Coupler Encoders Engraving Machine Wholesale. Buy Directly From Merchant SANNO FIRMER Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.