Snap-On’s ratcheting screwdrivers feature a five-position handle that incorporates pawl design based on transmission ring gear principles. The screwdrivers have solvent-resistant grips with contoured thumb stops and non-magnetic stainless steel shanks. Different shank sizes can be used with the same handle. There are more than 100 insert bits available. An in-handle storage compartment holds up to nine standard insert bits.