Good Performance Fast Drilling Low Price Diamond Core Drill Bit for Concrete Wall Block Marble 1-1/4 Unc

Good Performance Fast Drilling Low Price Diamond Core Drill Bit for Concrete Wall Block Marble 1-1/4 Unc. Wide Size Range: Diameter available from 18mm to 500mm for diverse drilling needs. Customizable Design: Working length, segment height, and tooth profile can be customized. Universal Thread Options: Compatible with various machines, including 1-1/4' UNC and M22. OEM & ODM Service: Custom logo, packaging, and specifications available upon request. High Durability: Premium diamond segments with reinforced steel body for long service life. Versatile Drilling Modes: Supports both dry drilling (non-reinforced) and wet drilling (reinforced concrete). Comprehensive Warranty: Standard 12 months warranty with optional extended coverage up to 36 months. Global Technical Support: 24/7 assistance, spare parts supply, and on-site or remote training.