For Angle grinder cutting blade, core drill bit adapter. Adapter Thread To 14 Thread Apply To Angle Grinder Cutting Blade Core Drill Bit Adapter. The stainless steel material is not only strong and long-lasting, but it is also rust-resistant. Adapter is easy to install and use, making it a great choice for anyone looking to streamline their stone cutting process. Product Name:Adapter Colour:Silver Material:304 Stainless steel Package Contents: 1 * M14- X Lock Adapter Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.