Diamond Core Drill Bits Matched to Material and Machine
We organize diamond core-bit supply around the work material, hole diameter, drilling mode and machine connection. HVAC, plumbing and concrete installation programs require different configurations from tile and stone work. Our team matches the construction and order specification to the actual application.
Core Bit Matrix by Workpiece
| Workpiece | Recommended Bond | Typical Diameter | Typical Shank |
|---|---|---|---|
| Reinforced concrete slab | Wet sintered segmented, general or rebar-cutting formula | 25–200 mm | 1/2 BSP, 5/8-11 UNC, R-1/2 |
| Brick / masonry wall | Wet sintered or dry soft-bond | 25–152 mm | 1/2 BSP or SDS-Plus |
| Porcelain tile / ceramic | Dry vacuum-brazed | 6–100 mm | Hex / M14 / SDS-Plus |
| Granite / marble / engineered stone | Wet continuous rim or sintered | 20–150 mm | M14, 5/8-11 UNC, 1/2 BSP |
| Glass / mirror | Wet continuous rim, fine grit | 6–50 mm | M14 / hex |
What We Actually Control
Serious buyers compare four things before placing an order:
- Bond recipe: general concrete, rebar-cutting, soft brick, hard granite — each with its own metal matrix and diamond concentration.
- Segment or rim welding: laser-welded segments for safety and life on sintered cores; vacuum brazing for dry cores with controlled grit exposure.
- Shank machining: 1/2 BSP, 5/8-11 UNC, M14, R-1/2, SDS-Plus and SDS-Max — threads cut and inspected so buyers do not return complaints about rig mounting.
- Packaging: PVC tube with label, blister card, plastic case, printed carton, and multilingual installation guide.
RFQ Checklist
- Workpiece: reinforced concrete, brick, porcelain tile, granite, marble, glass.
- Wet or dry use.
- Diameters and lengths (plus extensions if needed).
- Shank type for your hammer / rig / stand.
- Packaging: single tube, blister, plastic case, printed carton, private-label artwork.
- Volume and reorder cadence.
Factory RFQ and Bulk Supply
We supply B2B wholesale and bulk OEM orders. Send products, sizes and quantities, destination country, and planned container type or size. Minimum order requirements, lead time, payment terms and available inspection documents are confirmed for the selected product and order. We do not handle retail or small test orders.