Diamond Drill Bit Set Pro Grade 1mm 1.5mm 2mm 2.5mm With Four Collets For Dremel Rotary Tool Sea Glass Stone Shells Jewelry Making Porcelain Ceramic Gems 20 Piece 120 Grit

Premium Diamond Coated Drill Bits for Dremel in Four Sizes
✔️ 20 Piece Set 1mm to 2.5mm with Brass Collets 120 Grit for Glass and Stone

This 20 piece diamond drill bit set fits Dremel and similar rotary tools and gets used for drilling clean holes in sea glass stones shells and gems during jewelry making.

✅ Includes 5 bits each in 1mm 1.5mm 2mm and 2.5mm sizes
✅ Comes with 4 matching brass collets for a secure fit
✅ 120 grit diamond coating handles porcelain ceramic and gemstones
✅ Water cooling recommended for thicker materials like glass and stone

💡 What drill bits work best for making holes in sea glass and gemstones? Diamond coated bits cut through hard materials without cracking them when used with water cooling. - Twist design helps the bit stay centered during drilling - Collets keep everything locked in place on rotary tools - Multiple sizes cover pilot holes up to pendant sized openings - 120 grit gives smooth results on shells and quartz

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