[Diamond Beveling Chamfer Bits]: This three-piece diamond beveling chamfer bit set is perfect for enlarging, shaping, and trimming existing holes in tile, marble, and glass surfaces. [5/8-11 in Thread Adapter]: The diamond milling bits are designed with a 5/8-11 in thread adapter for easy installation.Diamond Beveling Chamfer Bits: diamond cone grinding bit measures . 1-3/8 inch (35 mm) in diameter, the thread is 5/8 inch-11, the grit is 80 and the degree is 53, suitable for 5/8 inch-11 thread angle grinder, equipped with a 5/8-11 inch thread adapter for drill Diamond Milling Bits: the diamond milling bit measures . 3/5 inch (15 mm), the machinable length is . 40 mm, 5/8-11 thread, grain size 45/50, and overall length is about 65 mm [High-Efficiency & Cutting]: These bits are made of premium diamond material, providing high-efficiency and cutting performance. [Sturdy Design]: The bits feature a strong and sturdy design for maximum reliability and durability. [Perfect Bevels]: These diamond beveling chamfer bits are perfect for anyone who needs to create perfect bevels in tile, marble, and glass surfaces. Colour:Photo Color Material:diamond + metal Package Contents: 1 x (3PCS) Diamond Beveling Chamfer Bits Kit 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.