Products Description
The D04A03 series Sintered Drilling Core Bit Type A is specially engineered for demanding dry drilling applications in granite and other hard natural stone materials. Utilizing advanced sintering technology, this core bit features a robust multi-layer diamond matrix that provides exceptional durability and sustained cutting performance. The sintered bond system ensures consistent diamond exposure throughout the bit's lifespan, making it ideal for continuous professional use in stone fabrication, monument work, and heavy-duty installation projects where reliability and longevity are paramount.
Sintered Diamond Technology: Multi-layer diamond matrix provides extended service life through consistent diamond exposure and wear resistance.
Granite-Specialized Formulation: Specifically engineered for optimal performance on granite's hard, crystalline structure.
Dry Drilling Capability: Designed for efficient dry operation without water cooling, suitable for job site flexibility.
Universal Connection Options: Compatible with M12, M14, 5/8"-11 thread, or 1/2" gas connections for wide tool adaptability.
10mm Segment Height: Standard depth capacity for most granite drilling applications, from thin slabs to thick countertops.
Professional-Grade Construction: Built to withstand the rigors of continuous use in stone fabrication and installation environments.
Part Nos | Inch | Diameter | Drilling Material | Segment Height |
D04A03.06 | 1/4" | 6mm | Granite | 10mm |
D04A03.08 | 5/16" | 8mm | Granite | 10mm |
D04A03.10 | 3/8" | 10mm | Granite | 10mm |
D04A03.12 | 1/2" | 12mm | Granite | 10mm |
D04A03.15 | 9/16" | 14mm | Granite | 10mm |
D04A03.18 | 5/8" | 16mm | Granite | 10mm |
D04A03.20 | 3/4" | 18mm | Granite | 10mm |
D04A03.20 | 7/8" | 20mm | Granite | 10mm |
D04A03.25 | 1" | 25mm | Granite | 10mm |
D04A03.30 | 1-1/4" | 30mm | Granite | 10mm |
D04A03.35 | 1-3/8" | 35mm | Granite | 10mm |
D04A03.38 | 1-1/2" | 38mm | Granite | 10mm |
D04A03.40 | 1-9/16" | 40mm | Granite | 10mm |
D04A03.45 | 1-3/4" | 45mm | Granite | 10mm |
D04A03.50 | 2" | 50mm | Granite | 10mm |
D04A03.60 | 2-3/8" | 60mm | Granite | 10mm |
D04A03.80 | 3-1/8" | 80mm | Granite | 10mm |
D04A03.100 | 4″ | 100mm | Granite | 10mm |
Ideal for granite countertop fabricators drilling holes for sinks, faucets, and cooktop installations. Perfect for monument and tombstone manufacturers creating precise openings for vases, plaques, and mounting hardware. Essential for stone masons and installers working on granite flooring, cladding, and architectural features. Suitable for commercial construction projects involving granite elements in lobbies, facades, and interior finishes. Also valuable for restoration specialists repairing and maintaining existing granite structures and installations.
MOQ: 20 pcs
Lead Time: 15–25 days after payment
Payment: T/T, PayPal, L/C
OEM: Custom logo/packaging available
