A reciprocating saw adaptor is provided. The adapter includes an insert blade and a base body. The insert blade includes a first end opposite a second end. The first end is sized to fit within and releasably retain to a reciprocating saw insert region. The base body includes a first end opposite a second end. The first end of the base body is fixed to the second end of the insert blade. The base body includes an opening formed on the second end leading into a threaded internal portion forming a female threaded receiver. The threaded female receiver mates with a threaded male portion of a coping saw.

A saw blade guiding device for a saw, in particular a jig saw, includes at least one guide unit for guiding a saw blade of the saw in a sawing operation. The guide unit has two guide elements, which are provided to together form a guide holder for the saw blade, wherein a width of the guide holder is adjustable by the two guide elements. At least one guide element of the two guide elements has, on a side facing the other guide element, at least two guide faces, each of which is provided to form a side face of the guide holder. The at least two guide faces are offset with respect to one another at least substantially parallel to an extent of the width the guide holder.