- 2.5mm High Quality Diamond Coated Drill Bits Pack of 20 pieces
- Preferred by Jewelry Designers for drilling clean holes on Beach Sea Glass, Sea Shells, Rocks, Marbles, Stones, etc.
- Practical – Suitable to be used with electric, cordless hand drills, upright drills, flex shafts, and rotary tools such as Dremel.
- Use MINIMAL pressure on the drill, just enough to let the diamond abrasive grind away the material. Using extra pressure will just damage the drill bit and not get you there any sooner.
- Water cooling is important.
Details: Diamond Drill Bit Set 20 Pieces 2.5mm Twist Tip Jewelry Beach Sea Glass Shells Gemstones Lapidary
Item Condition: New