If this is correct, it would translate to 58.327 OZ/in. The ones Ryan sells are 76 OZ/in which have a higher holding torque. Ryan’s are a 1.8 degree full step, but yours are a .9 full step, which would be a finer movement. You would also have to adjust your steps/mm accordingly in your firmware and/or CAM software.
As for how they would fare in real-world use, someone else with more experience here has to answer that.
Something is amiss here as according to the specs the KL17H248-15-4A (as stated) is a 0.9 degree per step motor with a 4.0Kg/cm holding torque, which is 55.55oz/in so unless the Chinese are playing games again I guess the ones Ryan supplies are not the ones quoted.
As to the OP, only trying them will see if they have enough torque in your build… They would be ok in a 3DPrinter or a laser engraver but with the increased loads from the cutter being dragged through the workpiece you will always be worried that at some point they will miss a step.
