- Drilling and mortising of stone, glass, and seashells.
- Allowable Number of Rotations (min-1r.p.m)
- Shaft Diameter (phi mm)
- HSS, electrodeposition diamond
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2 Customer Reviews
The reviews are automatic translation.
Expansion of the hole diameter of the bead
On 2016-11-01 14:45:17
Distance to the diamond portion and the shaft was good because there was 15mm.
It helped to hole diameter extension of up to 30mm of beads.
Used to drill a crystal ball
On 2015-04-20 18:05:51
When I used it for drilling a crystal ball, I could not cut it after opening 4 or 5 holes. It was disappointing because it was not durable. Even though the price is reasonable, it is not much different from cheap Chinese made.
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