Flexible coupler, removes stress between motor and driving component; 5mm to 8mm, great for RepRap 3D Printers and small CNC machines.
Coupler Dimensions: 19mm x 25mm/0.75 x 0.98inch(D x H)
High quality anti-backlash nut, high precision, suitable for 3D printer T8 lead screw.
Pitch: 2mm; Lead: 8mm.
Package Content: 2 x Shaft Coupler 5mm to 8mm + 2 x Anti Backlash Nut.