Vacuum Brazed Diamond Cone 1-3/8" 5/8"-11 PAVBC

Pearl Vacuum Brazed Diamond Cone 1-3/8" 5/8"-11 — Fast Edge Grinding for Tile Professionals

The Pearl PAVBC138 Diamond Cone is a specialized grinding tool engineered for tile professionals who need to clean up raw, jagged edges left behind after coring holes and making cutouts in hard tile materials. Featuring a durable vacuum brazed diamond bond and a unique tapered cone-shaped body, it rapidly grinds rough edges down to a smooth, beveled finish that improves both appearance and structural integrity. The beveled finish significantly reduces the risk of cracks forming and spreading from cut edges — a critical consideration when working with large format tile or any material under tension. The 5/8"-11 threaded arbor mounts directly to standard angle grinders, and the tool can be used wet or dry on porcelain, ceramic, marble, granite, and more.

Technical Specifications

Unlike standard abrasive grinding cones, the Pearl PAVBC138 uses a vacuum brazed diamond bond that delivers aggressive, consistent material removal on hard tile surfaces where conventional abrasives wear prematurely. The tapered cone geometry allows a single tool to work across a wide range of hole diameters, eliminating the need for multiple size-specific tools on the job site.

Key Features & Benefits

Vacuum Brazed Diamond Bond

The vacuum brazed bond securely anchors diamond abrasive particles to the cone body, providing aggressive cutting action and extended tool life on hard materials such as porcelain and granite. This bond type is well suited to the demanding edge-grinding work that follows coring and cutout operations.

Tapered Cone Body Design

The unique cone shape allows the tool to engage a wide range of hole diameters with a single tool, making it versatile across different cutout sizes encountered on a tile installation job. The taper also facilitates controlled material removal when enlarging existing holes.

Smooth Beveled Finish

The Pearl Diamond Cone quickly grinds jagged, raw edges down to a smooth, beveled finish that gives holes and cutouts a professional appearance. This finish also reduces stress concentrations at cut edges, significantly lowering the risk of cracks forming and spreading — especially important with large format tile or tensioned materials.

5/8"-11 Threaded Arbor

The standard 5/8"-11 thread mounts directly to common angle grinders without adapters, keeping setup time minimal on the job site. This compatibility makes the cone a practical addition to a tile contractor's existing tool inventory.

Wet or Dry Operation

The PAVBC138 can be used wet or dry, giving contractors flexibility to match their preferred dust control method or job site conditions. Wet use also helps manage heat buildup when grinding dense materials like porcelain or granite.

Common Applications

Cleaning Up Cored Hole Edges

After coring holes in tile for plumbing, electrical, or fixture penetrations, the cone rapidly removes the raw, jagged edge left by the core bit and produces a clean beveled finish.

Cutout Edge Finishing

Cutouts made for outlets, drains, or fixtures often leave rough edges that the Pearl Diamond Cone quickly smooths to a professional standard.

Enlarging Existing Holes

The tapered cone geometry makes it effective for carefully enlarging existing holes in tile to accommodate larger fixtures or correcting slightly undersized cutouts.

Trimming and Shaping

The cone can be used for general trimming and shaping applications on tile, providing controlled material removal in areas where a blade cannot reach.

Large Format Tile Edge Preparation

When working with large format tile that is particularly susceptible to crack propagation from cut edges, the beveled finish produced by the cone helps protect the integrity of the installation.

Compatible Materials

• Porcelain
• Ceramic
• Marble
• Granite

Safety Data Summary

Hazard Information

• Use of this abrasive tool generates dust that may contain respirable crystalline silica.
• Repeated and/or substantial inhalation of airborne crystalline silica can cause serious or fatal respiratory diseases, including silicosis.
• California and some other authorities have listed respirable crystalline silica as a substance known to cause cancer.
• This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm (Prop 65). Diamond products may contain Cobalt, Nickel, and Lead.

Personal Protective Equipment

• Wear properly fit-tested personal protective equipment (PPE) at all times during use.
• Use appropriate respiratory protection rated for respirable crystalline silica dust.

Safe Handling

• Do not use without proper dust containment and collection systems, or integrated water delivery systems.
• Acceptable work practices and dust control recommendations can be found in 29 CFR § 1910.1053.
• If unfamiliar with risks associated with grinding porcelain, granite, marble, or similar materials, review the product's material safety data sheet and consult OSHA, NIOSH, or other relevant authorities.
• For Prop 65 information, visit www.P65Warnings.ca.gov.

Frequently Asked Questions

Q: What thread size does the Pearl PAVBC138 Diamond Cone use?
A: The cone uses a standard 5/8"-11 thread, compatible with most common angle grinders.

Q: Can this cone be used dry, or does it require water?
A: The PAVBC138 is rated for both wet and dry use, giving contractors flexibility based on job site conditions and dust control requirements.

Q: Why is beveling the edges of tile cutouts important?
A: A smooth beveled edge significantly reduces the risk of cracks forming and spreading from cut edges. This is particularly important when working with large format tile or any material that is under tension.

Q: Can this tool be used to enlarge an existing hole in tile?
A: Yes. In addition to edge finishing after coring, the tapered cone design makes it suitable for enlarging existing holes and other shaping applications.