Special Features - Heavy Duty Pro Series Vacuum Brazed Technology with 5/8-11 Secure Connection Permanent Diamond Coating with Vacuum Brazing Technology Latest vacuum brazing technology permanently adhere diamond abrasive particles onto the rim of the tool. Cutting faster and cleaner. Longest tool life. Secure 5/8-11 Thread Connection Hardened steel alloy body with 5/8-11 threaded for secure connections with angle grinders and similar tools. Side Cooling & Extraction Slots Side cooling & extraction slots help efficient cooling of the tool with water and also serves as an access point for extraction of the core. Solid alloy steel body. Taller Design for Deeper Cuts Taller body of the tools will allow deeper cuts. Depth of cut is over 1-3/8 inches. Works great on 3 cm countertops Vacuum Brazed Technology Wide Diamond Coating - Corrugated Profile Vacuum Brazed Permanent CoatingEfficient CoolingPro-grade Tools for Toughest ApplicationsFast, Precise, and Clean Holes Side Slots for Cooling and Material Extraction Improved Body Mass with Alloy Steel Construction Smooth Surface for Reduced FrictionSide Slots for Cooling & Extracting Core MaterialEfficient Heat Dissipation5/8"-11 Standard Threaded Secure Connection How to Use Diamond Hole Saws? Easy To Use - DIY Friendly Start at an angleMake your initial mark and go uprightMove the tool in circular motions Wet or Dry Use Wet or Dry Use Through Toughest Materials Quartz, Marble, GraniteBrick, Concrete, Stucco, Cinder BlocksPorcelain, Ceramic TilesCountertops Diamond Coating Cooling & Connection Instructions Wet or Dry Use Drilax Pro Grade Heavy Duty Diamond Hole Saws Special Features Suitable for Heavy Duty Use Vacuum Brazed Diamond Coating Technology5/8 inch Wide Permanent Diamond Coating Along The Rim5/8"-11 Threaded Connection for Tools Such As Angle GrindersIncreased Depth of Cut: 1-3/8 inch (more than enough for thick countertops)Side Slots for CoolingIncreased Body Mass for Heat Dissipation 1 inch Pro Grade Diamond Hole Saw 1-1/4 inch Pro Grade Diamond Hole Saw 1-3/8 inch Pro Grade Diamond Hole Saw 1-1/2 inch Pro Grade Diamond Hole Saw 1-3/4 inch Pro Grade Diamond Hole Saw 5/8"-11 Standard Adapter Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.7 out of 5 stars 267 4.7 out of 5 stars 267 4.7 out of 5 stars 267 4.7 out of 5 stars 267 4.7 out of 5 stars 267 4.4 out of 5 stars 854 Price $14.99$14.99 $17.94$17.94 $19.99$19.99 $19.99$19.99 $19.99$19.99 $9.99$9.99 Hole Diameter 1 inch 1-1/4 inch 1-3/8 inch 1-1/2 inch 1-3/4 inch no data Max Hole Depth 1-3/8 inch 1-3/8 inch 1-3/8 inch 1-3/8 inch 1-3/8 inch no data Connection 5/8"-11 Threaded 5/8"-11 Threaded 5/8"-11 Threaded 5/8"-11 Threaded 5/8"-11 Threaded 5/8"-11 Adapter Heavy Duty ✓ ✓ ✓ ✓ ✓ no data Diamond Coating Method Vacuum Brazed Technology Vacuum Brazed Technology Vacuum Brazed Technology Vacuum Brazed Technology Vacuum Brazed Technology no data Dry or Wet Use ✓ ✓ ✓ ✓ ✓ no data 2 inch Pro Grade Diamond Hole Saw 2-1/2 inch Pro Grade Diamond Hole Saw 3 inch Pro Grade Diamond Hole Saw 4 inch Pro Grade Diamond Hole Saw 5/8"-11 Heavy Duty Adapter Add to Cart Add to Cart Add to Cart Add to Cart Add to Cart Customer Reviews 4.7 out of 5 stars 267 4.7 out of 5 stars 267 4.7 out of 5 stars 267 4.7 out of 5 stars 267 4.4 out of 5 stars 854 Price $19.99$19.99 $29.99$29.99 $29.99$29.99 $34.99$34.99 $9.99$9.99 Hole Diameter 2 inch 2-1/2 inch 3 inch 4 inch no data Max Hole Depth 1-3/8 inch 1-3/8 inch 1-3/8 inch 1-3/8 inch no data Connection 5/8"-11 Threaded 5/8"-11 Threaded 5/8"-11 Threaded 5/8"-11 Threaded 5/8"-11 Threaded Heavy Duty ✓ ✓ ✓ ✓ ✓ Diamond Coating Method Vacuum Brazed Technology Vacuum Brazed Technology Vacuum Brazed Technology Vacuum Brazed Technology N/A Dry or Wet Use ✓ ✓ ✓ ✓ ✓