Spade drill bit
Spade drill for hard material
Spade drill insert having curved cutting edges
Spade drill insert having helical margins
Spade drill insert having helical margins
Spade drill with replaceable cutting-insert carrier
Spade-type boring bit and an associated method and apparatus for
Spade-type boring bit having chamfered corner portions
Spade-type drill bit apparatus and method
Spade-type drill bit having helical configuration
Spectacle frame with angularly adjustable temples and means for
Spectacles lens boring jig positioning device
Speed change control structure for an electric tool
Speed reducer assembly
Speed-increasing spindle device
Spider machining apparatus
Spindle attachment device for machine tool
Spindle head with coolant feed
Spindle holder guide member for multiple spindle attachment
Spindle inertia changing apparatus for machining center