This grinder electric drill conversion kit can turn your electric drill into a multi-functional grinding machine. Perfect for polishing, cutting wood, grinding jade, removing rust, etc. The drill arbor mandrel adaptor is made of high-quality metal, wear-resistant, high-temperature resistant, sturdy, and durable. It fits most electric drills. This grinder connecting rod kit includes a 10mm triangular shaft and a 6mm round shaft. Just the conversion shaft you needed, insert it into the chuck, and then put the black pressure plate, polishing plate(not included), and silver pressure plate in order, using the wrench to tighten firmly. Please take protective measures installing and that the pressure plate is to prevent cutting parts from out during use. 1 x 6mm round shaft, 1 x triangular shaft, 3 set replacement grinder flange nuts, 2 x spanner wrench. Colour: Material:Metal Package Contents: 1 set x grinders Only the above package content, other are not included. Note: Light reflection and different displays may cause the color of the item in the a little different from the real thing. The measurement allowed error is +/- 1-3cm.