Heavy Duty Wet Core Diamond Drill Bit Three And A Half Inch For Concrete And Hard Masonry With One And A Quarter To Seven Threaded Arbor Pro Grade Tough Cut For Fast Clean Holes Wet Use Only

3-1/2 in Wet Core Diamond Drill Bit for Concrete & Masonry
✔️ 3-1/2 in dia, 14 in depth, 1-1/4-7 arbor, wet use, core-bit

Heavy-duty wet core diamond drill bit designed for fast, clean holes in concrete, hard brick, and other tough masonry. Used with compatible core drills, it delivers consistent cores through tough materials. Wet use cools the bit, extends life, and reduces dust.

✅ Diameter: 3-1/2 in (90 mm)
✅ Grit: #30/40
✅ Drilling depth: 14 in (355 mm)
✅ Arbor: 1-1/4-7 UNC (≈31.8 mm)
✅ Wet use only
✅ Segment height: 10 mm with #30/40 grit

💡 What is the best choice for a wet core diamond drill bit in concrete projects?

Short intro: The right bit matches hole size, material hardness, and drill arbor.

• Diameter and depth match your required hole in concrete or masonry
• Arbor compatibility with 1-1/4-7 UNC for core drills
• Water cooling extends bit life and reduces dust
• Choose a grit suitable for the material being drilled

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