BRSCHNITT Diamond Finger Milling Bit 1 3/16-inch

Key points

When a hole in a tile or stone surface needs shaping or enlarging during a kitchen, bathroom or floor renovation, a finger milling bit is made for a different job than a standard hole saw. This BRSCHNITT diamond bit is designed to work on existing holes in porcelain, ceramic, granite, marble and other listed stoneware and tile surfaces.

It measures 1 3/16 inches, has a 50 mm workable length and a 5/8-11 thread. The listing also gives a #50/60 grit and a total length of 65 mm. It is intended for use with an angle grinder and can be used wet or dry.

Keep in mind that this bit is not recommended for drilling a new hole: its stated purpose is to shape or enlarge one that is already there. That distinction matters when choosing between a milling bit and a hole saw.

Best use cases

This is aimed at adjustments rather than starting a cut. For example, if an existing opening in a porcelain tile needs a little more room for a fitting, the bit’s stated role is to help shape the edge. It is also listed for granite, natural stone, marble, stoneware, single-fired tiles and double-fired glazed tile, which makes it relevant to varied tile and stone renovation work.

The listing says one bit can help create holes of different sizes without buying multiple hole saws. In practice, that benefit depends on having an existing opening to work from, it does not make this a substitute for a tool intended to drill fresh holes. May suit you if the job involves modifying an opening in a listed material and your angle grinder has a matching 5/8-11 thread. May not be the best choice if you need to make a clean new hole from an uncut surface or need a different thread connection.

Tips for day-to-day use

Before starting, compare the bit’s 1 3/16-inch size and 50 mm workable length with the opening and the amount of shaping required. Check the thread on your angle grinder as well, the listing specifies 5/8-11, but gives no broader compatibility details. The bit is described for wet and dry use, so the choice depends on the task and how you plan to manage dust and debris.

Work from the existing hole and keep the aim on controlled enlargement or shaping, rather than treating the bit like a conventional drill. The product details do not specify a recommended grinder speed, pressure or expected lifespan, so those performance points should not be assumed. If your project needs exact sizing or a particular finish, the listing alone does not establish what result to expect.

Buying questions

Can it drill a new hole? The listing says it is not recommended for drilling and is designed to shape and enlarge existing holes.

Which materials are listed? Porcelain, ceramic, granite, natural stone, stoneware, marble and several tile types, including single-fired and double-fired glazed tile.

What should I check for the grinder? The bit has a 5/8-11 thread and is listed for an angle grinder. Check that the grinder’s connection matches.

Is it worth it?

This is a purpose-specific choice, not an all-round drilling bit. Its appeal is the combination of a diamond milling format, wet-or-dry use and a stated role in resizing existing openings across several tile and stone materials. If that is the task in front of you, it may save buying hole saws in multiple sizes, as the listing suggests. If you are starting from an uncut tile, choose a tool intended for drilling instead. The deciding checks are the existing hole, the material, the 1 3/16-inch size and the grinder’s thread.