🔧 Unleash Your Inner Artisan with Precision Tools! Brass core design minimizes shaft binding for smooth grinding. Chrome-plated and hardened for superior strength and longevity. Double-plated diamond surface ensures efficient and effective grinding. Includes 1 inch, 3/4 inch, and 1/4 inch bits for all your projects. Works seamlessly with most glass grinder brands and hard materials. Diamond plated for durability 3 sizes available 8mm hole diameter This set of stained glass diamond grinder bits includes three sizes (1 inch, 3/4 inch, and 1/4 inch) with a durable chrome-plated finish and brass core to enhance performance. Designed for efficiency, these bits are perfect for shaping and drilling hard materials like glass and ceramic, making them essential tools for any DIY enthusiast.