Two brass cupped jaws hold the stone securely and lined up perfectly centered to allow drilling from both sides without breaking or cracking.
Dimensions: 2" x 2" x 1"
Hole Diameter : 21.3mm
The Hole is Large Enough to Accept a 1mm drill
Dimensions: 2" x 2" x 1"
Hole Diameter : 21.3mm
The Hole is Large Enough to Accept a 1mm drill
