4 Piece Diamond Core Drill Bit Set For Dry And Wet Drilling Fits 5/8 Inch Threads For Grinders And Polishers Granite Concrete Hole Saw Bits Includes 1 Inch 1 1/4 Inch 1 3/8 Inch And 1 1/2 Inch Sizes

4-Piece Diamond Core Drill Bit Set for Dry and Wet Drilling
✔️ 5/8 inch thread; dry/wet core bits for grinders; sizes 1, 1-1/4, 1-3/8, 1-1/2 in

This four-piece diamond core drill bit set is designed for dry and wet drilling into granite, concrete, and tile. It's a handy solution for countertop installations and hard-material cutting when you need clean, accurate cores with a grinder or polisher.

✅ 4-piece set for granite and concrete core drilling
✅ 5/8 inch thread fits most grinders and polishers
✅ Diameters included: 1 in (25.4 mm), 1-1/4 in (31.75 mm), 1-3/8 in (34.93 mm), 1-1/2 in (38.1 mm)
✅ Max speed 4500 RPM; cooling with water is recommended to extend life

💡 What is a diamond core drill bit set used for and how does dry vs wet drilling compare? This handy kit helps explain when to use each method.

- handy for granite and concrete holes - 5/8 inch thread fits grinders and polishers - dry drilling is fast but heat builds up; wet cooling extends life - sizes cover common hole diameters for countertops and tile projects ✝️