One And Three Eighths Inch Diamond Core Drill Bits For Stone And Granite With Dot Protection Electroplated For Dry Or Wet Drilling Fast 2500 To 5000 RPM Durable Holes And Long Lasting Performance 80 To 100 Holes

1 3/8 in Diamond Core Drill Bit for Stone & Granite
✔️ Dry or wet drilling for stone, 2500-5000 RPM, single bit

This diamond core drill bit is designed for fast, clean through-holes in stone and granite, suitable for dry or wet drilling on countertops, tile, and masonry projects.

✅ Diameter 1 3/8 in (34.9 mm), electroplated with dot protection
✅ Dry or wet drilling for stone and granite
✅ 2500-5000 RPM for fast, clean holes
✅ 80-100 holes per bit under typical use

💡 What is the best way to choose a diamond core drill bit for stone and granite, and why does size matter?

Handy answer:
* Diamond core drill bits are designed to cut hard materials like stone and granite using electroplated diamonds
* Wet drilling cools and extends bit life; dry drilling is possible when water isn't available
* Choose the diameter to match the intended hole size, for example 1 3/8 in (34.9 mm)
* Maintain proper speed within 2500-5000 RPM to balance cut rate and bit life