Drilling without coolant in hard materials.
Diamond grit: #30
Dia: 5mm, 6mm, 7mm, 8mm, 10mm
Shank: Hexagon/ Round
Drill machine: 1500-3000RPM Cordless Drill
Test result: at least 60 holes for dry drilling hard tile, ceramic, marble, granite.
Drilling without coolant in hard materials.
Diamond grit: #30
Dia: 5mm, 6mm, 7mm, 8mm, 10mm
Shank: Hexagon/ Round
Drill machine: 1500-3000RPM Cordless Drill
Test result: at least 60 holes for dry drilling hard tile, ceramic, marble, granite.