Cheap And Discounts D19*L25 Aluminium flexible Jaw Shaft Coupling 5 8 6.35mm 8mm 10mm CNC Stepper Motor Coupler Encoders Engraving Machine Wholesale. Buy Directly From Merchant SANBrother Design Center Store. Enjoy ✓Free Shipping Worldwide! ✓90 Days Buyer Protection. ✓Easy Return. ✓Money Back Guarantee.