Features:  Practical Conversion Heads Set: This conversion heads set support multiple devices such as hand electric drill, lithium electric drill and impact drill, which can meet your different needs. (Electric drill is NOT INCLUDED, you need to bring your own electric drill）  Convenient to Use: Compared to traditional electric saws, this reciprocating saws is more light and portable, and storage is also easier.  Easy to Modify: With this modification tool set, you do not need to buy a new electric saws, you just need to spend a little time modifying it, saving your money and time.  Auxiliary Handle: The auxiliary handle can also be assembled easily, you can hold it tightly when using the machine, give you a comfortable use experience.  Preferred Material: This conversion adapter using plastics materials, has the characteristics of stability and long service time.    Specifications:  Material: plastics+metal  Electric drill connecting rod diameter: 7mm / 0.2in  Conversion Heads length: approx.145mm / 5.7in  Sawblade length: 100mm, 132mm, 152mm  Package size: 190 * 133 * 105mm / 7.5 * 5.2 * 4.1in  Package weight: 470g / 1.0lb    Packing list:  1 * Electric Drill Converter  1 * Handle  3 * Sawblade