Savvy Tools
1 / 5
| Product Name | High-frequency Welded Chip-Free Diamond Segmented Drilling Core Bits |
| Brand | Available or OEM |
| Diameter | 20 / 25 / 30 / 35 / 40 / 45 / 50 / 55 / 60 / 68 / 75mm |
| Diamond Height | 8mm |
| Total Length | 68mm |
| Thread | M14 or 5/8''-11 |
| Grit | #35/45 |
High-Frequency Welded Segmented Diamond Core Drill Bit – M14 Shank Hole Saw for Fast, Reliable Core Drilling in Concrete, Brick, Stone & Masonry
When you need to drill clean, deep holes in reinforced concrete, brick walls, granite, or block masonry, ordinary core bits crack, overheat, or lose segments under load. Our high-frequency (HF) welded segmented diamond core drill bits solve this with industrial-strength bonding and smart segment geometry — delivering maximum durability, aggressive cutting speed, and superior heat resistance even during extended dry operation.
Unlike traditional silver-brazed bits, high-frequency induction welding creates a metallurgical bond between the diamond segment and steel tube that withstands extreme vibration, high RPM, and embedded rebar. The open-segment design ensures rapid dust ejection and continuous cooling, while the standard M14 thread allows instant mounting on most 105–180mm angle grinders.
As a professional manufacturer and supplier of diamond tools, we have been in this industry for more than 20 years. We provide high-quality solutions for processing granite, marble, concrete, ceramic tile, glass, and steel, including:
1. We ship via Commercial Express (UPS, DHL, FedEx, Aramex), air, sea, or land per request.
2. Tracking numbers are updated within two working days after shipment.
3. Customs charges or local taxes are the responsibility of the recipient.
| Delivery Method | Asia/Australia | West Europe | East Europe | North America | South America |
|---|---|---|---|---|---|
| ePacket | 5-10 days | 5-15 days | 5-15 days | 5-10 days | 15-30 days |
| DHL/UPS | 4-6 days | 4-9 days | 4-9 days | 4-6 days | 5-10 days |
| FedEx | 5-9 days | 5-9 days | - | 3-7 days | 5-15 days |
