Abstract: In an apparatus for shearing multi-walled workpieces, such as metal framing studs, a base support defines a blade gap therebetween, and a guillotine-like blade is slidably received within the gap for shearing the workpieces. A pair of first and second supports are each slidably mounted on a respective base support and are each spaced apart from and face each other to thereby define an adjustable-width channel for receiving a workpiece. Each of the supports defines a blade-like edge and may be oriented relative to one another such that the axis of the channel, and a longitudinal axis of the workpiece received within the channel may be oriented at a desired angle relative to the blade. A base support may be provided which defines a support surface extending between the elongated edges. A pair of base members may be slidably disposed on the base support and the first and second pairs of supports may each include a pair of upstanding members at least one pair of which is slidably disposed on the base members.