Thin Wall Core Drill Bit for smooth chip free coring of porcelain, natural stone, engineered stone, granite, and more
| Model | Diameter | Width | Thickness | Grit Grade |
| DBA20 | 3/4"(20mm) | 8mm | 1.5mm | Standard |
| DBA25 | 1"(25mm) | 8mm | 1.5mm | Standard |
| DBA28 | 1-1/8"(28mm) | 8mm | 1.5mm | Standard |
| DBA32 | 1-1/4"(32mm) | 8mm | 1.5mm | Standard |
| DBA35 | 1-3/8"(35mm) | 8mm | 1.5mm | Standard |
| DBA38 | 1-1/2"(38mm) | 8mm | 1.5mm | Standard |
| DBA41 | 1-5/8"(41mm) | 8mm | 1.5mm | Standard |
| DBA45 | 1-3/4"(45mm) | 8mm | 1.5mm | Standard |
| DBA51 | 2"(51mm) | 8mm | 1.5mm | Standard |