This diamond finger bit is designed for enlarging, shaping, and rounding existing holes in porcelain tile, hard ceramic, marble, granite, and other natural stone, making it a practical choice for countertop, sink, and fixture installation work. It measures 30 mm in diameter, with a 50 mm work length and 65 mm total length, and uses #50 60 grit for efficient material removal. The vacuum brazed construction supports fast cutting and longer service life, while the 5/8 inch 11 thread fits standard grinders for easy setup. Recommended operating speed is 6000 RPM, with a maximum of 11000 RPM. Use dry or with water as needed, and avoid direct hole drilling to help extend tool life.
Diamond finger bit measures 30 mm diameter with 50 mm work length and 65 mm total length, built with #50 60 grit for controlled grinding, enlarging, and shaping on stone surfaces while fitting a 5/8 inch 11 threaded grinder.
Vacuum brazed construction helps deliver fast cutting action and extended service life, so one tool can enlarge, round, or refine existing holes in tile and stone, reducing tool changes and helping save time on finishing work.
Designed for use on standard grinders with a 5/8 inch 11 thread, this finger bit is easy to install and operate, with a recommended speed of 6000 RPM and a maximum speed of 11000 RPM for stable, efficient material removal.
Suitable for porcelain tile, hard ceramic, marble, granite, and other natural stone, it can be used dry or with water depending on the job, giving flexibility for remodeling, countertop fitting, sink openings, and edge correction.
Use this finger bit to enlarge, shape, or round pre existing holes instead of starting a hole from scratch, which helps preserve the workpiece, improves control, and makes it a practical choice for installers and fabricators.
Compact at 2.72 x 1.61 x 1.57 inches and weighing 13.1 ounces, the tool is easy to handle and store, while its rugged abrasive design supports dependable performance for home improvement, shop work, and site tasks.
