HARFINGTON 2pcs Diamond Finger Bit 30mm Dia Dry Core with 5/8"-11 Thread Diamond Chamfer Bit for Enlarging Shaping Milling Existing Holes on Porcelain Tile Ceramic Marble Countertop Black

1. This diamond milling bit is made with a new - type brazing process. It features firm welding, high diamond density, and is hard, keen , and not prone to detachment. It enables efficient drilling and is less likely to slip. 2. This product is highly durable and has an extended service life, allowing you to drill holes smoothly without any deviation.3. It is suitable for grinding various materials such as porcelain, ceramic tile, marble and something made of stone. By combining a standard core bit with this finger shaped bit, you can effortlessly produce holes of multiple sizes.4. Note: Regularly check for wear, store it safely after cleaning, and make sure operators are professional and wear protective gear.

• Size - Diameter: 30mm / 1.2inch; Thread model: 5/8" - 11; Total length: 66 mm / 2.6 inch; Working length: 46 mm / 1.8 inch; Diamond Grits: 50/60 grits.
• Material - Diamond, Alloy. Finger tile bit has extremely high hardness and strong wear resistance, can efficiently process hard materials and is durable. The alloy material is lightweight and has good toughness, which can boost resistance against mechanical stress, improving work efficiency and tool lifespan.
• Even Distribution Holes - Small holes on the tile grinding bit are evenly spaced, which can achieve comprehensive cooling and cleaning, ensuring that the entire grinding area benefits.The finger shaped design is suitable for processing narrow, deep groove or complex shaped areas. Meanwhile, with its keen cutting edge and stable performance, it can achieve high-precision machining, ensuring the dimensional accuracy and surface quality of the workpiece.
• Application - Diamond tile drill bit is suitable for various processing occasions on materials like porcelain, hard ceramic, marble, tiles and other natural stones, such as carving and trimming fine parts of jewelry or processing stone crafts, building decoration stone, etc
• Note - Operators should wear protective goggles, gloves, and other protective equipment during the processing. Recommended RPM is between 6000 to 11000.