Vacuum Brazed Diamond Core Bit (5/8"-11 UNC)
B2B Global Trade Information
Bulk order pricing and sample shipping rates will be calculated by our sales representatives via formal invoice within 24 hours.
01 Overview
Engineered for High-Speed Penetration. Built for the Grind.
Low-grade hole saws often burn out quickly on hard porcelain and granite, increasing replacement costs and halting jobsite momentum. The DRILLEX PRO series by ZR TOOLS utilizes advanced vacuum-brazed diamond technology, engineered for consistent, aggressive drilling on ultra-dense materials while designed to minimize tile shattering and resist premature dulling.
Technical Specifications
| Specification | Details |
| Manufacturing Process | Premium vacuum-brazed diamond coating for high thermal resistance and bonding strength. |
| Arbor / Thread Fit | 5/8"-11 UNC (Direct fit for standard North American angle grinders). |
| Body Structure | Precision-cut steel core engineered to resist deformation under high-RPM drilling. |
| Cooling & Ejection | Integrated side clearance slots for rapid heat dissipation and efficient core removal. |
Jobsite Advantages
| Feature | Engineering Performance |
| Aggressive Cutting | Quickly engages hard porcelain, granite, and quartz, engineered to resist walking or skating across the surface. |
| Dry Drilling Capable | Optimized for demanding dry-drilling environments where water cooling isn't feasible. |
| Extended Usable Life | Designed to outlast standard electroplated bits, lowering your per-hole tooling cost. |
"Built for contractors who calculate their ROI based on tool life and drilling speed."
02 Technical Specifications
| Category | Professional Construction Tools |
| Supply Ability | 50,000 Pieces per Month |
| Export Port | Ningbo / Shanghai / Shenzhen |
| Packaging | 100 pcs / bag (Clips only. Wedges and tensioning pliers available separately or as complete combo sets upon request). |
| BOM Status | Available / Export Ready |
| MOQ | 100 Sets / Negotiable |
| Lead Time | 7–15 Business Days |
| Customization | Custom OEM/ODM Logos & Pack |
03 Jobsite Benefits
- ✓Smooth, blowout-free clean hole openings in tough porcelain, ceramic, and quartz.
- ✓Internal cooling wax technology enables dry drilling on sites without water access.
- ✓Extended tool life reduces replacement down-times on continuous site usage.
04 Contractor Direct Q&A (FAQ)
Jobsite Tested KnowledgeQ1:Can these vacuum brazed diamond hole saws drill hard porcelain tiles dry without water cooling?
For larger core diameters (3/4" to 3"), dry drilling is supported at recommended RPMs, though light water misting will further extend tool lifespan.
Q2:What connection thread is used and what machines are compatible?
Angle grinders operating at 10,000–12,000 RPM provide the fastest cutting speeds and cleanest hole edges without chipping.
Q3:How many holes can one diamond hole saw drill in hard porcelain?
Vacuum brazing secures high-grade industrial diamond grit with metallurgical bonding, delivering up to 5x the working life of standard electroplated bits.
