Dremel 545 Diamond Cutoff Wheel 7/8 in Type 1 Masonry

Product Description

The DREMEL 545 is a diamond abrasive cutoff wheel designed for use with Dremel-style rotary tools. It measures 7/8 inches in diameter with a 0.024 inch thickness and a 7/8 inch arbor hole. The diamond abrasive construction makes it well-suited for cutting hard, brittle materials such as tile, stone, brick, and other masonry surfaces. Rated to a maximum of 20,000 RPM, this Type 1 (01/41) straight wheel delivers clean, controlled cuts when used at the correct tool speed. Licensed tradespeople and experienced DIYers use this wheel for detail cutting and scoring work on masonry materials in both field and shop settings.

This wheel is intended for masonry applications, including cutting ceramic tile, concrete, grout, stone, and similar hard materials. Its compact 7/8 inch diameter makes it appropriate for rotary tool use in tight spaces or detailed work where a larger abrasive tool would be impractical. It is commonly used in tile installation, stone fabrication, and repair work on masonry surfaces.

Key Features

• Diamond abrasive material for cutting hard masonry, tile, and stone
• 7/8 inch diameter and 7/8 inch arbor hole for standard rotary tool compatibility
• 0.024 inch thin profile for precise, low-waste cuts
• 20,000 RPM maximum rating for use with high-speed rotary tools
• Type 1 (01/41) straight wheel geometry for straightforward cutoff work

Compatibility

Designed as an OEM-style replacement or consumable cutoff wheel for rotary tools accepting a 7/8 inch arbor hole and rated for Type 1 abrasive wheels up to 20,000 RPM.

Installation Notes

Installation of abrasive cutoff wheels should be performed by a qualified operator following the tool manufacturer's guard and speed requirements. Always verify the tool's no-load RPM does not exceed the wheel's 20,000 RPM maximum before mounting. Power down and disconnect the rotary tool from its power source before changing wheels. Inspect the wheel for cracks or chips before each use and discard any damaged wheel immediately.