a housing containing a motor;

a substantially flat planar monolithic one piece carrier slidably disposed within said housing, said carrier including a first portion with a planar base and side walls extending from and continuous with said planar base defining a channel adapted to receive a saw blade and a second portion, continuous with said first portion forming said one piece carrier, said second portion having a slot with lateral side walls extending from opposing edges of said slot in said flat second portion forming an opening through said carrier, said lateral walls include a first pair and a second pair of laterally opposed walls, said first pair of walls laterally offset from said second pair of walls by a first channel and a second channel formed in said carrier, said carrier positioned in said housing such that the plane of said planar base is in a line of cutting with the saw blade so that the plane of the line of cut is substantially parallel to the plane of the planar base;

a rotatable element fixed for rotation about a support and rotated by said motor; and

a follower for operably interconnecting said carrier and said rotatable element, said follower rolling on said lateral walls wherein rotation of said rotatable element provides reciprocal linear motion of said carrier whereby said follower follows a reciprocal linear path within said lateral walls.