TolleSonne Diamond Beveling Chamfer Bit — 1-7/8 in Diamond Countersink with 5/8-11 Adapter

Precision beveling for existing holes in tough materials

Meet the TolleSonne Diamond Beveling Chamfer Bit, a purpose-built tool designed to enlarge, shape, and bevel existing holes with a confident, consistent edge. Featuring a 60-degree bevel and a gritty diamond matrix, this bit helps you refine openings in porcelain, hard ceramic, granite, marble, glass, and similar substrates. The 1-7/8 inch diameter and 5/8-11 thread match a range of grinders and drills, while the included adapter expands compatibility to drills, offering a single, robust solution for edge finishing. The result is a smooth, high-end finish that reduces the risk of edge chipping around the hole and makes subsequent fittings easier.

Key specifications at a glance

• Size and compatibility: Dia 1-7/8 inches (48 mm) with 5/8-11 thread; includes a 5/8-11 thread adapter for drills.
• Bevel and edge: 60-degree bevel to create clean, rounded edges around existing holes.
• Material and durability: Premium diamond along with durable metal for lasting edge retention and consistent results.
• Versatility and value: One bit supports multiple hole sizes, reducing the need for several tools.
• Usage guidance: Not designed to drill new holes; suitable for wet or dry operation depending on your task.

What you can expect in practice

Use this bit to enlarge and shape holes in tile, porcelain, ceramic, granite, marble, or glass. The diamond edge helps achieve a refined bevel, while the 60-degree angle keeps the finish consistent. Whether you’re preparing a conduit opening or routing a pipe, the bit aims to deliver a professional look without excessive tool changes.

Usage tips and best practices

• Attach the 5/8-11 adapter and secure the bit to your angle grinder or drill. Maintain steady, even pressure and let the diamond edge do the cutting for smoother results.
• Operate with light dust or water cooling if preferred; dry use is also supported to suit your workflow.

Practical applications you may encounter

• Enlarging existing holes in tile, porcelain, or ceramic to accommodate pipes or electrical wiring.
• Refining edges on stone surfaces like granite and marble for a neat, finished look.
• Creating consistent bevels around holes to improve fit and aesthetics during installations.

Why choose TolleSonne

This diamond countersink bevel bit blends durable construction with practical versatility. It’s designed to deliver dependable edge finishing on hard surfaces, potentially simplifying project workflows by consolidating several tasks into one tool. While results depend on material and technique, the bit offers a credible option for achieving refined hole edges and clean bevels, without promising guaranteed outcomes.