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If you do any kind of lapidary work, jewelry making, or fine carving, these bowl-shaped diamond burrs from Luo ke are super useful.


They're made with premium diamond particles bonded to a metal core, so they cut sharp and stay durable.
The bowl shape is great for hollowing, rounding, and creating concave surfaces.
These bits chew through stone, ceramics, glass, carbide, tile, marble, and even hard metals.


Quick tip: always run these with water cooling (like a drip system) when carving hard materials, or the diamonds will overheat and graphitize – then they'll wear out fast.
And before you start, check that the bit runs true with no wobble.


4.7 out of 5