About this item

• *Package Included: 1 x Diamond Hole Saw Set with hole diameter: 7-1/4' / 185mm, total length: 2¡± / 50mm.
• *Quality Preferred: The diamond hole cutter is made of industrial-grade carbon steel and plated with a nickel coating to enhance the corrosion resistance. The high quality diamond coating improves the hardness, sharpness and cutting speed of the drill bit and realizes a smooth, high precision cutting edge without damage.
• *How to use: During operation, please keep adding water to keep the hole saw cool and increase lubricity. Keep the drilling speed at 800-1000 per minute to reduce the drilling pressure, which can greatly extend the service life of the hole saw. (Please note that: dry drilling is strictly prohibited for this product.)
• *Widely Used: The glass hole saw suitable for Glass, Tile, Fiberglass, Porcelain Tile, Ceramic, Slate Mable, Granite Light Stone. Not for use on Concrete.
• *Q&A: If you have any question of our products, please contact us by email, we will reply to you within 24 hours.