Diamond Cutting Disc Makita B-12762 115 mm for Concrete and Brick

Diamond cutting disc Makita B-12762 115 mm is a segmented-rim blade designed for cutting concrete and brick with angle grinders that accept 115 mm discs. The disc combines a diamond-edged cutting surface with a durable steel core to provide efficient material removal and extended service life during masonry cutting tasks. It is intended for use on handheld grinders in construction and renovation settings where straight, fast cuts in hard materials are required.

Advantages

The segmented rim structure improves chip clearance and cooling, which helps maintain cutting speed and reduces disc heating. The diamond segments are brazed to a hardened steel plate for stable performance and resistance to wear when used on abrasive masonry materials. A compact 115 mm diameter makes the disc suitable for tight spaces and precise cuts, while the balanced design reduces vibration for more controlled handling during repetitive operations.

Suitable for

• Cutting concrete blocks and cast concrete elements
• Cutting clay and cement bricks
• On-site renovation and construction tasks with handheld angle grinders
• Making straight cuts in masonry for service openings and installations

Key specifications

• Disc diameter: 115 mm
• Cutting rim: segmented diamond rim for masonry
• Intended materials: concrete and brick
• Mounting type: for angle grinders with 115 mm discs (standard arbor)
• Typical use: dry cutting (use of water depends on grinder and jobsite conditions)

How to use

Fit the disc on a compatible 115 mm angle grinder following the tool manufacturer’s instructions and ensure the grinder is switched off and unplugged during installation. Secure the disc with the correct flange and tighten according to the grinder manual. When cutting, hold the tool with both hands and allow the disc to reach full speed before engaging the workpiece. Use steady forward motion with light to moderate pressure; avoid forcing the disc through material. If the job or local regulations require wet cutting, check that the disc and grinder are suitable for water use and follow safety guidance for wet operation.

Usage recommendations

Always wear appropriate personal protective equipment including eye protection, hearing protection, gloves and respiratory protection suitable for masonry dust. Inspect the disc before use for cracks or damage and do not use a damaged disc. Match cutting speed and feed rate to the material to extend disc life and achieve a cleaner cut. Store the disc flat in a dry place away from extreme temperatures and corrosive substances.