High-Quality Nq Carbon Steel Drill Rods for Core Drilling

1. Material: Special material from BAOSTEEL, better concentricity & straightness.
2. Heat treatment: Multi-point temperature measurement to guarantee perfect match between strength and toughness.
3. Thread harden: Mechanical properties improved 15-25%;
                          Surface hardness reach 45-55HRC;
                          Anti-fatigue strength improved 20-30%;
                          Working life improved 1.5 time.
4. Quality controlled: All the processes during manufacturing.
5. Length: 3m / 1.5m / customization.
6. MOQ: 1 PCS.
7. Delivery Time: Large stock, ready to ship.