Reciprocating Saw, Portable Handheld Reciprocating Saw Adapter Electric Drill Modified Tool Woodworking Accessory with 3 Saw Blades for Wood and Metal Cutting i think you just attach a drill to it and it works as a jigsaw, used in woodworking class and class is over now , showing signs of wear and tear,any questions or problems please message ,thanks, cost around £20, i will try and find some info and put it below About this item【Portable and Lightweight】: This saw attachment for drill is suitable for wood and metal cutting. Compared with traditional electric saws, this reciprocating saw is light and portable.【Comfortable Grip】: Exquisite workmanship, the handle of reciprocating saw is non‑slip and easy to grip.【Reciprocating Saw】: This portable reciprocating saw kit changes a universal electric drill to a reciprocating saw.【Premium Material】: The electric drill saw converter is made of high quality material, safe and eco‑friendly, firm and durable.