
High Precision Smooth Cutting Custom Sizes Available Diamond Core Drill Bit for Wall Concrete Stone. Customizable Design: Working length, segment height, and tooth profile are fully customizable to meet specific needs. Wide Size Range: Diameter available from 18mm to 500mm covering various drilling requirements. Dual Drilling Modes: Supports both dry drilling (non-reinforced) and wet drilling (reinforced concrete). Universal Thread Options: Compatible with various machines featuring 1-1/4" UNC threaded connections. High Durability: Constructed with premium diamond segments and heavy-duty steel bodies for long service life. Fast Drilling Speed: Engineered for stable cutting performance and rapid drilling in concrete and stone. OEM & ODM Service: Custom logo, packaging, and specifications available for brand customization. Global Support: 24/7 technical assistance and spare parts supply with optional extended warranty.