This blade will fit the Industry Standard Niwa PD30 and our GRES_PD30 Pro handles. These are the same handles all of us have on our workbenches. Yes NIWA has stopped making screwdrivers.
This is not a Niwa blade but custom made for SPT. This blade is not a cheap but very high quality blade specially manufactured for GRES to fit Niwa and GRES handles.
These blades are only available through SPT and GRES These is not the low quality substitutes available elsewhere.
The tip of this blade is 1.7 mm. The length is 115mm