12PCS Diamond Hole Saw Kit, Vacuum Brazed Diamond Core Drill Bits for Angle Grinder, Includes Adapter for Hand Drill, 1/4" to 2-1/2" for Porcelain Tile, Marble, Granite, Stone

Professional 12-Piece Vacuum Brazed Diamond Hole Saw Kit for Superior Performance Are you tired of drill bits that dull quickly or crack your expensive tiles? Our Vacuum Brazed Diamond Hole Saw Kit is the ultimate solution for high-quality, durable drilling in the toughest materials. Designed for the US market, this kit combines industrial strength with home-use convenience. Why Choose Vacuum Brazed Diamond? Unlike standard diamond bits, the vacuum brazing process permanently bonds diamond particles to the steel core at a molecular level. This means the teeth stay sharp longer, run cooler, and can handle the high-speed demands of an angle grinder. Product Specifications: Material: Professional Vacuum Brazed Diamond. Thread: 5/8"-11 (US Standard for Angle Grinders). Cutting Depth: 1.37 Inch. Adapter: 5/8"-11 to Hex Shank (For Hand Drills). Complete 12-Piece Kit Includes: 11 x Diamond Core Bits: 1/4" to 2-1/2". 1 x Power Drill Adapter. 1 x Rugged Storage Case. Widely Applications: Ideal for kitchen and bathroom renovations. Easily cut through: Porcelain Tile, Ceramic, and Glass. Marble, Granite, and Quartz. Brick Walls and Calcium Silicate Boards. User Guidance: 1. Assembly: For angle grinders, screw on directly. For hand drills, use the included adapter. 2. Technique: Start at a 45-degree angle to create a "cradle" notch, then slowly bring the drill to 90 degrees while applying steady pressure. 3. Safety: NOT for use on Metal, Wood, or Plastic. Using on these materials will damage the diamond layer.

• 【Advanced Vacuum Brazed Technology】 Crafted with professional-grade vacuum brazed diamond technology, these hole saws provide faster cutting speeds and a significantly longer service life compared to electroplated bits. The high diamond concentration ensures clean, precise holes without cracking the surface.
• 【12-Piece Comprehensive Set】 This versatile kit includes 11 essential sizes: 1/4", 1/2", 3/4", 1", 1-1/8", 1-1/4", 1-3/8", 1-1/2", 1-3/4", 2", and 2-1/2", plus a premium adapter. From small cable holes to large plumbing pipe installations, this set covers all your renovation needs.
• 【Dual Compatibility: Grinder & Drill】 Designed with a standard 5/8"-11 thread for direct use on most US angle grinders. The included adapter allows for easy connection to common handheld electric drills, providing maximum flexibility for DIYers and pros alike.
• 【Dry & Wet Use with 1.37" Depth】 Engineered for a 1.37-inch cutting depth, these bits excel in dry drilling. However, using water as a coolant can significantly extend the tool's lifespan. Perfect for creating holes in porcelain tile, marble, granite, glass, brick, and masonry.
• 【Heavy-Duty Storage & Usage Tip】 Comes in a sturdy carrying case for organized storage and easy portability. IMPORTANT: This kit is designed for masonry and stone only. DO NOT use on metal, wood, or plastic. Always wear safety gear during operation.