The SD-1 Nicker Screwdriver is made to fit the slotted screw securing the old style knife nickers on our No. 10-1/4 Bench Rabbet Plane (from 2018 or earlier).
They may be useful for other jobs as well. Modeled after gunsmith's screwdrivers with machined tips, correctly sized to fit the screw slots, giving you good power and control, without slipping. Blades are 4140 Steel. Cherry handles.
