This screwdrivers is made to fit the bolts on our closed handled saws (Tenon and Panel Saws) as well as the Inlay Thicknessing Gauge. 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 hardened 416 Stainless Steel. Curly Maple handles.