The case of a stepper motor 5mm shaft connecting to a 8mm positioning lead screw. 5 assemblies in this set, each assembly has 4 lock screws, Allen wrench, and coupler tube. The lead screw common diameter/size of 8mm that matches one end of this coupler tube. The stepper motors often have a 3mm output shaft that is the hole size of the opposite end of this coupler tube. The small CNC kit commonly would use the coupler kit like this per axis.

The case of a stepper motor 5mm shaft connecting to a 8mm positioning lead screw. 5 assemblies in this set, each assembly has 4 lock screws, Allen wrench, and coupler tube. The lead screw common diameter/size of 8mm that matches one end of this coupler tube. The stepper motors often have a 3mm output shaft that is the hole size of the opposite end of this coupler tube. The small CNC kit commonly would use the coupler kit like this per axis.

The case of a stepper motor 5mm shaft connecting to a 8mm positioning lead screw. 5 assemblies in this set, each assembly has 4 lock screws, Allen wrench, and coupler tube. The lead screw common diameter/size of 8mm that matches one end of this coupler tube. The stepper motors often have a 3mm output shaft that is the hole size of the opposite end of this coupler tube. The small CNC kit commonly would use the coupler kit like this per axis.

Seem great

Seem great

Seem great