Diamond Coated Finger Bit, 1-3/8" Tile Milling Bit to Enlarge Polish Shape Holes on Porcelain Ceramic Marble Granite Tile Countertop, with 5/8-11 Thread to 3/8" Hex Shank Adapter, Diameter 35mm

1-3/8”(35mm) inch Diamond Finger bit.What can it do?You can use it to enlarge, shape and reshape, and round bevel predrilled holes or existing holes in Porcelain, Hard Ceramic, marble, and granite countertop or wall tiles or floor tiles when you upgrading your kitchen or bathroom.Why Diamond finger bits?Diamonds coating covers all top and sides of the finger bit, ensuring high efficient working performance in your job.It can work wet or dry to meet all needs in different environment.Easy to use：with the 5/8-Inch-11 thread to 3/8: hex shank adapter, you can use your electric drill to shape perfect holes too.Features:Diameter of the bit:1-3/8”(35mm)Work depth: 2"（50mm）Length: 2-1/2”65mmPackage includes: 1 Diamond Finger bit and 1 piece of 5/8”-11 thread to 3/8: hex shank adapter

• 【Functions】: With our diamond finger bit, you can easily enlarge, shape, or round existing holes to create perfect smooth holes in different sizes.
• 【Features】: Diamond Core Drill Bit with advanced Diamond coating ensures high efficiency and long life, diameter 1-3/8inch (35mm), work length 50mm, total length 65mm.
• 【Applicable materials】: This 1-3/8" finger bit is suitable for shaping holes on porcelain hard ceramic marble granite tiles and other natural stones; fit both dry and wet applications
• 【Easy to Operate】: Our 1-3/8" finger bit (35mm) work with standard Angle-grinders with 5/8 inch-11 thread; there is a 5/8-11 Thread to 3/8" Hex Shank adapter included, so it will also work with most electric drills.
• 【Recommendation】: For the best durability, we recommend only use this diamond finger bit to enlarge, shape, or round predrilled holes; and an RPM between 6000 to 11000 for optimal performance.