Sandstorm Steel
1 / 5
| Model NO. | BD |
| Material | Tungsten Carbide |
| Type | Twist Drill Bit |
| Drill Point Angle | 140° |
| Manufacturing Standard | DIN 6537 |
| Application | CNC Drilling Machine/Machining Center |
| Diameter Range | 3-20mm |
| HRC | 45/55/60/65HRC |
| Usage | Wood, Well, PCB, Metal, Masonry Drilling |
A drill bit is a rotating cutting tool designed to create holes in various materials, including metal, wood, plastic, and concrete. Characterized by its sharp, spiral-shaped (helical) cutting edges, it is widely used in machining, construction, and woodworking.
● High Efficiency: Features spiral grooves (flutes) that channel chips away to reduce friction.
● Durable Material: Crafted from HSS, Cobalt, or Carbide for extreme durability.
| Category | Key Specifications |
| Basic Geometry | Diameter: 0.01mm to 100mm+; Point Angle: 118° (general), 135° (hard metals). |
| Shank Types | Round Shank, Hex Shank, Morse Taper (MT), SDS Shank. |
| Coatings | TiN (Gold), TiCN (Blue-gray), TiAlN (Purple-black), DLC (Black). |
| Performance | Tolerance Class: H7/H8; Runout: ≤0.01mm. |
How to select the right drill bit:
• Hard Materials: Choose carbide bits with 135° split point and TiAlN coating.
• Soft Materials: Opt for HSS with large helix angles and polished edges.
