[DETAIL] PRODUCT NAME: DT-DIATOOL Dry Vacuum Brazed Drilling Hole Saw core bitsProfessional Quality SPECIFICATION: Diameter:  20mm, 28mm, 25mm, 30mm, 32mm, 35mm, 38mm,40mm, 43mm, 45mm, 50mm, 55mm, 60mm, 65mm, 68mm, 75mm, 100mm, 115mm Total length 60mm,  Connection M14 Thread (Very important for fixing to your machine) QUANTITY: 1pc FEATURE: 1. Wide application for drilling Tile Ceramic Granite Marble Stone.... 2. Vacuum Brazed technology provide much longer working life than electroplated ones (Generally 3-5times) 3. Dry drilling without water feeding, 6mm-16mm bits with Wax inside helps cooling the bits 4. Less Chipping, Minimizing breakage, less heat generation, Better finish quality 5. High diamond exposure rate provides a faster and more aggressive drilling. 6. Save your money and time.... Other Available Diameter: Other specification is available if you order bulk quantity. Note: Please allow 1-3mm errors due to manual measurement Item color displayed in photos may be showing slightly different on your computer monitor since monitors are not calibrated same [ATTRIBUTES] - Hign-concerned Chemical: None - Brand Name: DT-DIATOOL - Origin: Mainland China - Hign-concerned Chemical: None - Brand Name: DT-DIATOOL - Origin: Mainland China - Certification: CE - DIY Supplies: TiLing - Material: Diamond - Type: Core Drill Bit - Use: Masonry Drilling - Length: 60MM - connection: M14 thread - machine: angle grinder - grits: #35/40 - technology: vacuum brazed - diamond height: 10-15mm - drilling materials: tile ceramic, granite, marble, stone